31457143031603 has 2 divisors, whose sum is σ = 31457143031604. Its totient is φ = 31457143031602.

The previous prime is 31457143031569. The next prime is 31457143031609. The reversal of 31457143031603 is 30613034175413.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31457143031603 - 2⁶ = 31457143031539 is a prime.

It is not a weakly prime, because it can be changed into another prime (31457143031609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15728571515801 + 15728571515802.

It is an arithmetic number, because the mean of its divisors is an integer number (15728571515802).

Almost surely, 2^{31457143031603} is an apocalyptic number.

31457143031603 is a deficient number, since it is larger than the sum of its proper divisors (1).

31457143031603 is an equidigital number, since it uses as much as digits as its factorization.

31457143031603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 41.

The spelling of 31457143031603 in words is "thirty-one trillion, four hundred fifty-seven billion, one hundred forty-three million, thirty-one thousand, six hundred three".