31533051040 has 48 divisors (see below), whose sum is σ = 74699960832. Its totient is φ = 12578828544.

The previous prime is 31533051007. The next prime is 31533051079. The reversal of 31533051040 is 4015033513.

It is a junction number, because it is equal to n+sod(n) for n = 31533050996 and 31533051014.

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, 209784 + ... + 327223.

It is an arithmetic number, because the mean of its divisors is an integer number (1556249184).

Almost surely, 2^31533051040 is an apocalyptic number.

It is an amenable number.

31533051040 is an abundant number, since it is smaller than the sum of its proper divisors (43166909792).

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

31533051040 is a wasteful number, since it uses less digits than its factorization.

31533051040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537389 (or 537381 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 25.

Adding to 31533051040 its reverse (4015033513), we get a palindrome (35548084553).

The spelling of 31533051040 in words is "thirty-one billion, five hundred thirty-three million, fifty-one thousand, forty".