31203140027 has 2 divisors, whose sum is σ = 31203140028. Its totient is φ = 31203140026.

The previous prime is 31203140011. The next prime is 31203140053. The reversal of 31203140027 is 72004130213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31203140027 - 2⁴ = 31203140011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31203139984 and 31203140011.

It is not a weakly prime, because it can be changed into another prime (31203140627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15601570013 + 15601570014.

It is an arithmetic number, because the mean of its divisors is an integer number (15601570014).

Almost surely, 2^31203140027 is an apocalyptic number.

31203140027 is a deficient number, since it is larger than the sum of its proper divisors (1).

31203140027 is an equidigital number, since it uses as much as digits as its factorization.

31203140027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 23.

The spelling of 31203140027 in words is "thirty-one billion, two hundred three million, one hundred forty thousand, twenty-seven".