31123113402441 has 64 divisors (see below), whose sum is σ = 43089462743040. Its totient is φ = 19966491705600.

The previous prime is 31123113402379. The next prime is 31123113402461. The reversal of 31123113402441 is 14420431132113.

It is not a de Polignac number, because 31123113402441 - 2²¹ = 31123111305289 is a prime.

It is a super-2 number, since 2×31123113402441² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31123113402399 and 31123113402408.

It is not an unprimeable number, because it can be changed into a prime (31123113402461) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4109743131 + ... + 4109750703.

It is an arithmetic number, because the mean of its divisors is an integer number (673272855360).

Almost surely, 2^{31123113402441} is an apocalyptic number.

It is an amenable number.

31123113402441 is a deficient number, since it is larger than the sum of its proper divisors (11966349340599).

31123113402441 is a wasteful number, since it uses less digits than its factorization.

31123113402441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8806.

The product of its (nonzero) digits is 6912, while the sum is 30.

Adding to 31123113402441 its reverse (14420431132113), we get a palindrome (45543544534554).

The spelling of 31123113402441 in words is "thirty-one trillion, one hundred twenty-three billion, one hundred thirteen million, four hundred two thousand, four hundred forty-one".