Search a number
-
+
121003020112231 = 7922949917417699
BaseRepresentation
bin11011100000110100110110…
…000001111101000101100111
3120212102202221112002001120001
4123200310312001331011213
5111330003141122042411
61105204004154522131
734326115432363135
oct3340646601750547
9525382845061501
10121003020112231
1135612102347124
12116a3242736347
1352696c72cc26a
1421c4812636755
15dec8760d4dc1
hex6e0d3607d167

121003020112231 has 32 divisors (see below), whose sum is σ = 123403280000000. Its totient is φ = 118627655552640.

The previous prime is 121003020112223. The next prime is 121003020112241. The reversal of 121003020112231 is 132211020300121.

It is a cyclic number.

It is not a de Polignac number, because 121003020112231 - 23 = 121003020112223 is a prime.

It is a super-2 number, since 2×1210030201122312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121003020112199 and 121003020112208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121003020112241) 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, 15716715220 + ... + 15716722918.

It is an arithmetic number, because the mean of its divisors is an integer number (3856352500000).

Almost surely, 2121003020112231 is an apocalyptic number.

121003020112231 is a deficient number, since it is larger than the sum of its proper divisors (2400259887769).

121003020112231 is a wasteful number, since it uses less digits than its factorization.

121003020112231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10247.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 121003020112231 its reverse (132211020300121), we get a palindrome (253214040412352).

The spelling of 121003020112231 in words is "one hundred twenty-one trillion, three billion, twenty million, one hundred twelve thousand, two hundred thirty-one".

Divisors: 1 79 229 499 1741 7699 18091 39421 114271 137539 398689 608221 868759 1763071 3841801 9027409 13403959 31496431 68631961 139282609 198945811 303502279 879772429 1058912761 3069506611 6688575541 15716719069 69502021891 242491022269 528397467739 1531683798889 121003020112231