31043743051 has 2 divisors, whose sum is σ = 31043743052. Its totient is φ = 31043743050.

The previous prime is 31043743043. The next prime is 31043743109. The reversal of 31043743051 is 15034734013.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31043743051 - 2³ = 31043743043 is a prime.

It is not a weakly prime, because it can be changed into another prime (31043743151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15521871525 + 15521871526.

It is an arithmetic number, because the mean of its divisors is an integer number (15521871526).

Almost surely, 2^31043743051 is an apocalyptic number.

31043743051 is a deficient number, since it is larger than the sum of its proper divisors (1).

31043743051 is an equidigital number, since it uses as much as digits as its factorization.

31043743051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 31.

The spelling of 31043743051 in words is "thirty-one billion, forty-three million, seven hundred forty-three thousand, fifty-one".