31300405043 has 2 divisors, whose sum is σ = 31300405044. Its totient is φ = 31300405042.

The previous prime is 31300405021. The next prime is 31300405051. The reversal of 31300405043 is 34050400313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31300405043 - 2²⁰ = 31299356467 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (31300405013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15650202521 + 15650202522.

It is an arithmetic number, because the mean of its divisors is an integer number (15650202522).

Almost surely, 2^31300405043 is an apocalyptic number.

31300405043 is a deficient number, since it is larger than the sum of its proper divisors (1).

31300405043 is an equidigital number, since it uses as much as digits as its factorization.

31300405043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 23.

Adding to 31300405043 its reverse (34050400313), we get a palindrome (65350805356).

The spelling of 31300405043 in words is "thirty-one billion, three hundred million, four hundred five thousand, forty-three".