30100031057 has 2 divisors, whose sum is σ = 30100031058. Its totient is φ = 30100031056.

The previous prime is 30100031011. The next prime is 30100031081. The reversal of 30100031057 is 75013000103.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18155945536 + 11944085521 = 134744^2 + 109289^2 .

It is a cyclic number.

It is not a de Polignac number, because 30100031057 - 2⁶ = 30100030993 is a prime.

It is not a weakly prime, because it can be changed into another prime (30100031557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15050015528 + 15050015529.

It is an arithmetic number, because the mean of its divisors is an integer number (15050015529).

Almost surely, 2^30100031057 is an apocalyptic number.

It is an amenable number.

30100031057 is a deficient number, since it is larger than the sum of its proper divisors (1).

30100031057 is an equidigital number, since it uses as much as digits as its factorization.

30100031057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 315, while the sum is 20.

The spelling of 30100031057 in words is "thirty billion, one hundred million, thirty-one thousand, fifty-seven".