31143022432434 has 192 divisors, whose sum is σ = 75817870128000. Its totient is φ = 9157383244800.

The previous prime is 31143022432421. The next prime is 31143022432469. The reversal of 31143022432434 is 43423422034113.

31143022432434 is a `hidden beast` number, since 3 + 1 + 1 + 4 + 302 + 24 + 324 + 3 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 898797142 + ... + 898831790.

It is an arithmetic number, because the mean of its divisors is an integer number (394884740250).

Almost surely, 2^{31143022432434} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31143022432434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37908935064000).

31143022432434 is an abundant number, since it is smaller than the sum of its proper divisors (44674847695566).

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

31143022432434 is a wasteful number, since it uses less digits than its factorization.

31143022432434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35401 (or 35398 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 36.

Adding to 31143022432434 its reverse (43423422034113), we get a palindrome (74566444466547).

The spelling of 31143022432434 in words is "thirty-one trillion, one hundred forty-three billion, twenty-two million, four hundred thirty-two thousand, four hundred thirty-four".