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10131233131 = 23440488397
BaseRepresentation
bin10010110111101111…
…00101100101101011
3222011001200222010201
421123313211211223
5131222043430011
64353151253031
7506030026555
oct113367454553
928131628121
1010131233131
1143298a9448
121b68b1a177
13c55c48306
146c17644d5
153e4681cc1
hex25bde596b

10131233131 has 4 divisors (see below), whose sum is σ = 10571721552. Its totient is φ = 9690744712.

The previous prime is 10131233117. The next prime is 10131233171. The reversal of 10131233131 is 13133213101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10131233131 - 211 = 10131231083 is a prime.

It is a super-2 number, since 2×101312331312 (a number of 21 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 = 10131233099 and 10131233108.

It is not an unprimeable number, because it can be changed into a prime (10131233171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220244176 + ... + 220244221.

It is an arithmetic number, because the mean of its divisors is an integer number (2642930388).

Almost surely, 210131233131 is an apocalyptic number.

10131233131 is a deficient number, since it is larger than the sum of its proper divisors (440488421).

10131233131 is an equidigital number, since it uses as much as digits as its factorization.

10131233131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440488420.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 10131233131 its reverse (13133213101), we get a palindrome (23264446232).

The spelling of 10131233131 in words is "ten billion, one hundred thirty-one million, two hundred thirty-three thousand, one hundred thirty-one".

Divisors: 1 23 440488397 10131233131