31103140903 has 2 divisors, whose sum is σ = 31103140904. Its totient is φ = 31103140902.

The previous prime is 31103140843. The next prime is 31103140919. The reversal of 31103140903 is 30904130113.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31103140903 - 2²⁹ = 30566269991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31103140933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15551570451 + 15551570452.

It is an arithmetic number, because the mean of its divisors is an integer number (15551570452).

Almost surely, 2^31103140903 is an apocalyptic number.

31103140903 is a deficient number, since it is larger than the sum of its proper divisors (1).

31103140903 is an equidigital number, since it uses as much as digits as its factorization.

31103140903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 25.

The spelling of 31103140903 in words is "thirty-one billion, one hundred three million, one hundred forty thousand, nine hundred three".