2100131023423 has 4 divisors (see below), whose sum is σ = 2114039176048. Its totient is φ = 2086222870800.

The previous prime is 2100131023387. The next prime is 2100131023427. The reversal of 2100131023423 is 3243201310012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2100131023423 - 2¹⁷ = 2100130892351 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2100131023394 and 2100131023403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100131023427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6954076086 + ... + 6954076387.

It is an arithmetic number, because the mean of its divisors is an integer number (528509794012).

Almost surely, 2^{2100131023423} is an apocalyptic number.

2100131023423 is a deficient number, since it is larger than the sum of its proper divisors (13908152625).

2100131023423 is a wasteful number, since it uses less digits than its factorization.

2100131023423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13908152624.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 2100131023423 its reverse (3243201310012), we get a palindrome (5343332333435).

The spelling of 2100131023423 in words is "two trillion, one hundred billion, one hundred thirty-one million, twenty-three thousand, four hundred twenty-three".