245313211019 has 2 divisors, whose sum is σ = 245313211020. Its totient is φ = 245313211018.

The previous prime is 245313210959. The next prime is 245313211043. The reversal of 245313211019 is 910112313542.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 245313211019 - 2²⁰ = 245312162443 is a prime.

It is a super-2 number, since 2×245313211019² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (245313211069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122656605509 + 122656605510.

It is an arithmetic number, because the mean of its divisors is an integer number (122656605510).

Almost surely, 2^245313211019 is an apocalyptic number.

245313211019 is a deficient number, since it is larger than the sum of its proper divisors (1).

245313211019 is an equidigital number, since it uses as much as digits as its factorization.

245313211019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 32.

The spelling of 245313211019 in words is "two hundred forty-five billion, three hundred thirteen million, two hundred eleven thousand, nineteen".