2102131023 has 8 divisors (see below), whose sum is σ = 2924704128. Its totient is φ = 1340489304.

The previous prime is 2102131007. The next prime is 2102131043. The reversal of 2102131023 is 3201312012.

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

It is not a de Polignac number, because 2102131023 - 2⁴ = 2102131007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2102130993 and 2102131011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102131043) 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, 15232765 + ... + 15232902.

It is an arithmetic number, because the mean of its divisors is an integer number (365588016).

Almost surely, 2^2102131023 is an apocalyptic number.

2102131023 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2102131023 is a deficient number, since it is larger than the sum of its proper divisors (822573105).

2102131023 is a wasteful number, since it uses less digits than its factorization.

2102131023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30465693.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2102131023 is about 45849.0024209906. The cubic root of 2102131023 is about 1281.0121842078.

Adding to 2102131023 its reverse (3201312012), we get a palindrome (5303443035).

The spelling of 2102131023 in words is "two billion, one hundred two million, one hundred thirty-one thousand, twenty-three".