31101133057 has 2 divisors, whose sum is σ = 31101133058. Its totient is φ = 31101133056.

The previous prime is 31101133039. The next prime is 31101133121. The reversal of 31101133057 is 75033110113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30082821136 + 1018311921 = 173444^2 + 31911^2 .

It is a cyclic number.

It is not a de Polignac number, because 31101133057 - 2⁷ = 31101132929 is a prime.

It is not a weakly prime, because it can be changed into another prime (31101133757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15550566528 + 15550566529.

It is an arithmetic number, because the mean of its divisors is an integer number (15550566529).

Almost surely, 2^31101133057 is an apocalyptic number.

It is an amenable number.

31101133057 is a deficient number, since it is larger than the sum of its proper divisors (1).

31101133057 is an equidigital number, since it uses as much as digits as its factorization.

31101133057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 945, while the sum is 25.

The spelling of 31101133057 in words is "thirty-one billion, one hundred one million, one hundred thirty-three thousand, fifty-seven".