31323031027 has 2 divisors, whose sum is σ = 31323031028. Its totient is φ = 31323031026.

The previous prime is 31323030979. The next prime is 31323031073. The reversal of 31323031027 is 72013032313.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31323031027 is a prime.

It is a super-2 number, since 2×31323031027² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31323030992 and 31323031010.

It is not a weakly prime, because it can be changed into another prime (31323031087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15661515513 + 15661515514.

It is an arithmetic number, because the mean of its divisors is an integer number (15661515514).

Almost surely, 2^31323031027 is an apocalyptic number.

31323031027 is a deficient number, since it is larger than the sum of its proper divisors (1).

31323031027 is an equidigital number, since it uses as much as digits as its factorization.

31323031027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 25.

The spelling of 31323031027 in words is "thirty-one billion, three hundred twenty-three million, thirty-one thousand, twenty-seven".