31143434453232 has 40 divisors (see below), whose sum is σ = 80627638857984. Its totient is φ = 10358723331264.

The previous prime is 31143434453227. The next prime is 31143434453273. The reversal of 31143434453232 is 23235443434113.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 700648998 + ... + 700693445.

Almost surely, 2^{31143434453232} is an apocalyptic number.

It is an amenable number.

31143434453232 is an abundant number, since it is smaller than the sum of its proper divisors (49484204404752).

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

31143434453232 is a wasteful number, since it uses less digits than its factorization.

31143434453232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1401342917 (or 1401342911 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 42.

Adding to 31143434453232 its reverse (23235443434113), we get a palindrome (54378877887345).

The spelling of 31143434453232 in words is "thirty-one trillion, one hundred forty-three billion, four hundred thirty-four million, four hundred fifty-three thousand, two hundred thirty-two".