2101311002023 has 8 divisors (see below), whose sum is σ = 2104488784256. Its totient is φ = 2098135353600.

The previous prime is 2101311002009. The next prime is 2101311002029. The reversal of 2101311002023 is 3202001131012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2101311002023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2101311001988 and 2101311002006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101311002029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1443103 + ... + 2507023.

It is an arithmetic number, because the mean of its divisors is an integer number (263061098032).

Almost surely, 2^{2101311002023} is an apocalyptic number.

2101311002023 is a deficient number, since it is larger than the sum of its proper divisors (3177782233).

2101311002023 is a wasteful number, since it uses less digits than its factorization.

2101311002023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066905.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 2101311002023 its reverse (3202001131012), we get a palindrome (5303312133035).

The spelling of 2101311002023 in words is "two trillion, one hundred one billion, three hundred eleven million, two thousand, twenty-three".