31233003961 has 2 divisors, whose sum is σ = 31233003962. Its totient is φ = 31233003960.

The previous prime is 31233003929. The next prime is 31233004037. The reversal of 31233003961 is 16930033213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23918478336 + 7314525625 = 154656^2 + 85525^2 .

It is a cyclic number.

It is not a de Polignac number, because 31233003961 - 2⁵ = 31233003929 is a prime.

It is not a weakly prime, because it can be changed into another prime (31233003661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15616501980 + 15616501981.

It is an arithmetic number, because the mean of its divisors is an integer number (15616501981).

Almost surely, 2^31233003961 is an apocalyptic number.

It is an amenable number.

31233003961 is a deficient number, since it is larger than the sum of its proper divisors (1).

31233003961 is an equidigital number, since it uses as much as digits as its factorization.

31233003961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8748, while the sum is 31.

The spelling of 31233003961 in words is "thirty-one billion, two hundred thirty-three million, three thousand, nine hundred sixty-one".