31028683057 has 2 divisors, whose sum is σ = 31028683058. Its totient is φ = 31028683056.

The previous prime is 31028683009. The next prime is 31028683061. The reversal of 31028683057 is 75038682013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30521487616 + 507195441 = 174704^2 + 22521^2 .

It is a cyclic number.

It is not a de Polignac number, because 31028683057 - 2¹¹ = 31028681009 is a prime.

It is not a weakly prime, because it can be changed into another prime (31028683957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15514341528 + 15514341529.

It is an arithmetic number, because the mean of its divisors is an integer number (15514341529).

Almost surely, 2^31028683057 is an apocalyptic number.

It is an amenable number.

31028683057 is a deficient number, since it is larger than the sum of its proper divisors (1).

31028683057 is an equidigital number, since it uses as much as digits as its factorization.

31028683057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 31028683057 in words is "thirty-one billion, twenty-eight million, six hundred eighty-three thousand, fifty-seven".