31424241232131 has 64 divisors (see below), whose sum is σ = 47110351680000. Its totient is φ = 18470183546880.

The previous prime is 31424241232127. The next prime is 31424241232157. The reversal of 31424241232131 is 13123214242413.

It is not a de Polignac number, because 31424241232131 - 2² = 31424241232127 is a prime.

It is a super-2 number, since 2×31424241232131² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 31424241232092 and 31424241232101.

It is not an unprimeable number, because it can be changed into a prime (31424241232121) 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, 55390195 + ... + 55954643.

It is an arithmetic number, because the mean of its divisors is an integer number (736099245000).

Almost surely, 2^{31424241232131} is an apocalyptic number.

31424241232131 is a deficient number, since it is larger than the sum of its proper divisors (15686110447869).

31424241232131 is a wasteful number, since it uses less digits than its factorization.

31424241232131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564884.

The product of its digits is 27648, while the sum is 33.

Adding to 31424241232131 its reverse (13123214242413), we get a palindrome (44547455474544).

The spelling of 31424241232131 in words is "thirty-one trillion, four hundred twenty-four billion, two hundred forty-one million, two hundred thirty-two thousand, one hundred thirty-one".