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31301231013023 = 172521817301299
BaseRepresentation
bin1110001110111111000101…
…10000010110110010011111
311002211100221121102011010012
413013133202300112302133
513100314410114404043
6150323330443433435
76410303453454056
oct707374260266237
9132740847364105
1031301231013023
119a78860981584
12361647ab2587b
131460902598c5a
147a2db821939d
1539433bd13a18
hex1c77e2c16c9f

31301231013023 has 8 divisors (see below), whose sum is σ = 33142615858800. Its totient is φ = 29459861274240.

The previous prime is 31301231012993. The next prime is 31301231013049. The reversal of 31301231013023 is 32031013210313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31301231013023 - 26 = 31301231012959 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31301231013023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31301231013823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 636428 + ... + 7937726.

It is an arithmetic number, because the mean of its divisors is an integer number (4142826982350).

Almost surely, 231301231013023 is an apocalyptic number.

31301231013023 is a deficient number, since it is larger than the sum of its proper divisors (1841384845777).

31301231013023 is a wasteful number, since it uses less digits than its factorization.

31301231013023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7553497.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 31301231013023 its reverse (32031013210313), we get a palindrome (63332244223336).

The spelling of 31301231013023 in words is "thirty-one trillion, three hundred one billion, two hundred thirty-one million, thirteen thousand, twenty-three".

Divisors: 1 17 252181 4287077 7301299 124122083 1841248883119 31301231013023