31532312142204 has 72 divisors (see below), whose sum is σ = 76286850434928. Its totient is φ = 10136193500160.

The previous prime is 31532312142193. The next prime is 31532312142239. The reversal of 31532312142204 is 40224121323513.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6636667 + ... + 10349394.

It is an arithmetic number, because the mean of its divisors is an integer number (1059539589374).

Almost surely, 2^{31532312142204} is an apocalyptic number.

It is an amenable number.

31532312142204 is an abundant number, since it is smaller than the sum of its proper divisors (44754538292724).

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

31532312142204 is a wasteful number, since it uses less digits than its factorization.

31532312142204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16986255 (or 16986216 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

Adding to 31532312142204 its reverse (40224121323513), we get a palindrome (71756433465717).

The spelling of 31532312142204 in words is "thirty-one trillion, five hundred thirty-two billion, three hundred twelve million, one hundred forty-two thousand, two hundred four".