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23120231013031 = 833734049184441
BaseRepresentation
bin1010100000111000110010…
…01010000001101010100111
310000212021100122121001220111
411100130121022001222213
511012300213114404111
6121101142033313451
74604244610023535
oct520343112015247
9100767318531814
1023120231013031
117404264733399
122714a32705887
13cb92c7b233a9
1459d04d033155
152a16249b3a21
hex150719281aa7

23120231013031 has 16 divisors (see below), whose sum is σ = 23467440981600. Its totient is φ = 22774686612480.

The previous prime is 23120231013029. The next prime is 23120231013037. The reversal of 23120231013031 is 13031013202132.

It is a cyclic number.

It is not a de Polignac number, because 23120231013031 - 21 = 23120231013029 is a prime.

It is a super-2 number, since 2×231202310130312 (a number of 28 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 = 23120231012993 and 23120231013011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23120231013037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125260771 + ... + 125445211.

It is an arithmetic number, because the mean of its divisors is an integer number (1466715061350).

Almost surely, 223120231013031 is an apocalyptic number.

23120231013031 is a deficient number, since it is larger than the sum of its proper divisors (347209968569).

23120231013031 is a wasteful number, since it uses less digits than its factorization.

23120231013031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188946.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 23120231013031 its reverse (13031013202132), we get a palindrome (36151244215163).

The spelling of 23120231013031 in words is "twenty-three trillion, one hundred twenty billion, two hundred thirty-one million, thirteen thousand, thirty-one".

Divisors: 1 83 373 4049 30959 184441 336067 1510277 15308603 68796493 125352991 746801609 5710108919 61984533547 278557000157 23120231013031