31341131432 has 64 divisors (see below), whose sum is σ = 64126339200. Its totient is φ = 14273798400.

The previous prime is 31341131431. The next prime is 31341131441. The reversal of 31341131432 is 23413114313.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (31341131431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3219869 + ... + 3229587.

It is an arithmetic number, because the mean of its divisors is an integer number (1001974050).

Almost surely, 2^31341131432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31341131432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32063169600).

31341131432 is an abundant number, since it is smaller than the sum of its proper divisors (32785207768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31341131432 is a wasteful number, since it uses less digits than its factorization.

31341131432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10146 (or 10142 counting only the distinct ones).

The product of its digits is 2592, while the sum is 26.

Adding to 31341131432 its reverse (23413114313), we get a palindrome (54754245745).

The spelling of 31341131432 in words is "thirty-one billion, three hundred forty-one million, one hundred thirty-one thousand, four hundred thirty-two".