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23112113211031 = 1338943110603993
BaseRepresentation
bin1010100000101001101010…
…10011000100011010010111
310000211111101220112000001011
411100110311103010122113
511012132101440223111
6121053320324513051
74603536465605365
oct520246523043227
9100744356460034
1023112113211031
117400879415619
122713347b4b787
13cb8603075960
1459c8bcc62635
152a12ebe99021
hex1505354c4697

23112113211031 has 16 divisors (see below), whose sum is σ = 25011852727680. Its totient is φ = 21230040303360.

The previous prime is 23112113210947. The next prime is 23112113211037. The reversal of 23112113211031 is 13011231121132.

It is a cyclic number.

It is not a de Polignac number, because 23112113211031 - 211 = 23112113208983 is a prime.

It is a super-2 number, since 2×231121132110312 (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23112113210993 and 23112113211011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23112113211037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3122430 + ... + 7481563.

It is an arithmetic number, because the mean of its divisors is an integer number (1563240795480).

Almost surely, 223112113211031 is an apocalyptic number.

23112113211031 is a deficient number, since it is larger than the sum of its proper divisors (1899739516649).

23112113211031 is a wasteful number, since it uses less digits than its factorization.

23112113211031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10604826.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 23112113211031 its reverse (13011231121132), we get a palindrome (36123344332163).

The spelling of 23112113211031 in words is "twenty-three trillion, one hundred twelve billion, one hundred thirteen million, two hundred eleven thousand, thirty-one".

Divisors: 1 13 389 431 5057 5603 167659 2179567 10603993 137851909 4124953277 4570320983 53624392601 59414172779 1777854862387 23112113211031