20100013231019 has 2 divisors, whose sum is σ = 20100013231020. Its totient is φ = 20100013231018.

The previous prime is 20100013230929. The next prime is 20100013231037. The reversal of 20100013231019 is 91013231000102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20100013231019 is a prime.

It is a super-2 number, since 2×20100013231019² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 20100013230985 and 20100013231003.

It is not a weakly prime, because it can be changed into another prime (20100013231049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10050006615509 + 10050006615510.

It is an arithmetic number, because the mean of its divisors is an integer number (10050006615510).

Almost surely, 2^{20100013231019} is an apocalyptic number.

20100013231019 is a deficient number, since it is larger than the sum of its proper divisors (1).

20100013231019 is an equidigital number, since it uses as much as digits as its factorization.

20100013231019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 23.

The spelling of 20100013231019 in words is "twenty trillion, one hundred billion, thirteen million, two hundred thirty-one thousand, nineteen".