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140012012011231 = 171923119315797723
BaseRepresentation
bin11111110101011100010110…
…001111010111111011011111
3200100202000110211221221021001
4133311130112033113323133
5121322424100033324411
61213440344054051131
741330351115510013
oct3765342617277337
9610660424857231
10140012012011231
1140680840747058
1213853323649aa7
1360180cb1bc359
142680890754543
15112c078d30dc1
hex7f57163d7edf

140012012011231 has 32 divisors (see below), whose sum is σ = 162971848419840. Its totient is φ = 119312484977664.

The previous prime is 140012012011099. The next prime is 140012012011243. The reversal of 140012012011231 is 132110210210041.

It is a cyclic number.

It is not a de Polignac number, because 140012012011231 - 217 = 140012011880159 is a prime.

It is a super-2 number, since 2×1400120120112312 (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140012012011199 and 140012012011208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140012012011331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 963936 + ... + 16761658.

It is an arithmetic number, because the mean of its divisors is an integer number (5092870263120).

Almost surely, 2140012012011231 is an apocalyptic number.

140012012011231 is a deficient number, since it is larger than the sum of its proper divisors (22959836408609).

140012012011231 is a wasteful number, since it uses less digits than its factorization.

140012012011231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15798975.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 140012012011231 its reverse (132110210210041), we get a palindrome (272122222221272).

The spelling of 140012012011231 in words is "one hundred forty trillion, twelve billion, twelve million, eleven thousand, two hundred thirty-one".

Divisors: 1 17 19 23 323 391 437 1193 7429 20281 22667 27439 385339 466463 521341 8862797 15797723 268561291 300156737 363347629 5102664529 6176909693 6903604951 18846683539 117361284167 320393620163 358086987241 433473721397 6087478783097 7369053263749 8236000706543 140012012011231