20330131031099 has 2 divisors, whose sum is σ = 20330131031100. Its totient is φ = 20330131031098.

The previous prime is 20330131031057. The next prime is 20330131031143. The reversal of 20330131031099 is 99013013103302.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20330131031099 is a prime.

It is not a weakly prime, because it can be changed into another prime (20330131331099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10165065515549 + 10165065515550.

It is an arithmetic number, because the mean of its divisors is an integer number (10165065515550).

Almost surely, 2^{20330131031099} is an apocalyptic number.

20330131031099 is a deficient number, since it is larger than the sum of its proper divisors (1).

20330131031099 is an equidigital number, since it uses as much as digits as its factorization.

20330131031099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13122, while the sum is 35.

The spelling of 20330131031099 in words is "twenty trillion, three hundred thirty billion, one hundred thirty-one million, thirty-one thousand, ninety-nine".