31681360430 has 16 divisors (see below), whose sum is σ = 57221083584. Its totient is φ = 12629292000.

The previous prime is 31681360421. The next prime is 31681360433. The reversal of 31681360430 is 3406318613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31681360433) 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 7 ways as a sum of consecutive naturals, for example, 5403446 + ... + 5409305.

It is an arithmetic number, because the mean of its divisors is an integer number (3576317724).

Almost surely, 2^31681360430 is an apocalyptic number.

31681360430 is a deficient number, since it is larger than the sum of its proper divisors (25539723154).

31681360430 is a wasteful number, since it uses less digits than its factorization.

31681360430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10813051.

The product of its (nonzero) digits is 31104, while the sum is 35.

The spelling of 31681360430 in words is "thirty-one billion, six hundred eighty-one million, three hundred sixty thousand, four hundred thirty".