31397095443 has 32 divisors (see below), whose sum is σ = 48336431616. Its totient is φ = 17757186048.

The previous prime is 31397095441. The next prime is 31397095459. The reversal of 31397095443 is 34459079313.

It is not a de Polignac number, because 31397095443 - 2¹ = 31397095441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31397095392 and 31397095401.

It is not an unprimeable number, because it can be changed into a prime (31397095441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 778780 + ... + 818102.

It is an arithmetic number, because the mean of its divisors is an integer number (1510513488).

Almost surely, 2^31397095443 is an apocalyptic number.

31397095443 is a deficient number, since it is larger than the sum of its proper divisors (16939336173).

31397095443 is a wasteful number, since it uses less digits than its factorization.

31397095443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39723.

The product of its (nonzero) digits is 1224720, while the sum is 48.

The spelling of 31397095443 in words is "thirty-one billion, three hundred ninety-seven million, ninety-five thousand, four hundred forty-three".