31432411561431 has 64 divisors (see below), whose sum is σ = 44538750720000. Its totient is φ = 19685113254912.

The previous prime is 31432411561423. The next prime is 31432411561433. The reversal of 31432411561431 is 13416511423413.

It is not a de Polignac number, because 31432411561431 - 2³ = 31432411561423 is a prime.

It is a super-2 number, since 2×31432411561431² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31432411561431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31432411561433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3885817635 + ... + 3885825723.

It is an arithmetic number, because the mean of its divisors is an integer number (695917980000).

Almost surely, 2^{31432411561431} is an apocalyptic number.

31432411561431 is a deficient number, since it is larger than the sum of its proper divisors (13106339158569).

31432411561431 is a wasteful number, since it uses less digits than its factorization.

31432411561431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13656.

The product of its digits is 103680, while the sum is 39.

Adding to 31432411561431 its reverse (13416511423413), we get a palindrome (44848922984844).

The spelling of 31432411561431 in words is "thirty-one trillion, four hundred thirty-two billion, four hundred eleven million, five hundred sixty-one thousand, four hundred thirty-one".