31023012947 has 2 divisors, whose sum is σ = 31023012948. Its totient is φ = 31023012946.

The previous prime is 31023012941. The next prime is 31023012953. The reversal of 31023012947 is 74921032013.

It is a balanced prime because it is at equal distance from previous prime (31023012941) and next prime (31023012953).

It is a cyclic number.

It is not a de Polignac number, because 31023012947 - 2¹⁶ = 31022947411 is a prime.

It is not a weakly prime, because it can be changed into another prime (31023012941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15511506473 + 15511506474.

It is an arithmetic number, because the mean of its divisors is an integer number (15511506474).

Almost surely, 2^31023012947 is an apocalyptic number.

31023012947 is a deficient number, since it is larger than the sum of its proper divisors (1).

31023012947 is an equidigital number, since it uses as much as digits as its factorization.

31023012947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 32.

The spelling of 31023012947 in words is "thirty-one billion, twenty-three million, twelve thousand, nine hundred forty-seven".