31103313213019 has 2 divisors, whose sum is σ = 31103313213020. Its totient is φ = 31103313213018.

The previous prime is 31103313212971. The next prime is 31103313213031. The reversal of 31103313213019 is 91031231330113.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31103313213019 - 2²¹ = 31103311115867 is a prime.

It is a super-2 number, since 2×31103313213019² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31103313213079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15551656606509 + 15551656606510.

It is an arithmetic number, because the mean of its divisors is an integer number (15551656606510).

Almost surely, 2^{31103313213019} is an apocalyptic number.

31103313213019 is a deficient number, since it is larger than the sum of its proper divisors (1).

31103313213019 is an equidigital number, since it uses as much as digits as its factorization.

31103313213019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4374, while the sum is 31.

The spelling of 31103313213019 in words is "thirty-one trillion, one hundred three billion, three hundred thirteen million, two hundred thirteen thousand, nineteen".