2101002111323 has 2 divisors, whose sum is σ = 2101002111324. Its totient is φ = 2101002111322.

The previous prime is 2101002111319. The next prime is 2101002111359. The reversal of 2101002111323 is 3231112001012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2101002111323 - 2² = 2101002111319 is a prime.

It is not a weakly prime, because it can be changed into another prime (2101002111023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050501055661 + 1050501055662.

It is an arithmetic number, because the mean of its divisors is an integer number (1050501055662).

Almost surely, 2^{2101002111323} is an apocalyptic number.

2101002111323 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101002111323 is an equidigital number, since it uses as much as digits as its factorization.

2101002111323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 2101002111323 its reverse (3231112001012), we get a palindrome (5332114112335).

The spelling of 2101002111323 in words is "two trillion, one hundred one billion, two million, one hundred eleven thousand, three hundred twenty-three".