31020078941 has 2 divisors, whose sum is σ = 31020078942. Its totient is φ = 31020078940.

The previous prime is 31020078923. The next prime is 31020078967. The reversal of 31020078941 is 14987002013.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16341787225 + 14678291716 = 127835^2 + 121154^2 .

It is a cyclic number.

It is not a de Polignac number, because 31020078941 - 2⁶ = 31020078877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31020078841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15510039470 + 15510039471.

It is an arithmetic number, because the mean of its divisors is an integer number (15510039471).

Almost surely, 2^31020078941 is an apocalyptic number.

It is an amenable number.

31020078941 is a deficient number, since it is larger than the sum of its proper divisors (1).

31020078941 is an equidigital number, since it uses as much as digits as its factorization.

31020078941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 35.

The spelling of 31020078941 in words is "thirty-one billion, twenty million, seventy-eight thousand, nine hundred forty-one".