3121020010099 has 2 divisors, whose sum is σ = 3121020010100. Its totient is φ = 3121020010098.

The previous prime is 3121020010079. The next prime is 3121020010151. The reversal of 3121020010099 is 9900100201213.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3121020010099 is a prime.

It is not a weakly prime, because it can be changed into another prime (3121020010049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1560510005049 + 1560510005050.

It is an arithmetic number, because the mean of its divisors is an integer number (1560510005050).

Almost surely, 2^{3121020010099} is an apocalyptic number.

3121020010099 is a deficient number, since it is larger than the sum of its proper divisors (1).

3121020010099 is an equidigital number, since it uses as much as digits as its factorization.

3121020010099 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 28.

The spelling of 3121020010099 in words is "three trillion, one hundred twenty-one billion, twenty million, ten thousand, ninety-nine".