2100123132 has 48 divisors (see below), whose sum is σ = 4932974592. Its totient is φ = 695387520.

The previous prime is 2100123097. The next prime is 2100123211. The reversal of 2100123132 is 2313210012.

It is a super-2 number, since 2×2100123132² = 8821034339122978848, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1931493 + ... + 1932579.

It is an arithmetic number, because the mean of its divisors is an integer number (102770304).

Almost surely, 2^2100123132 is an apocalyptic number.

It is an amenable number.

2100123132 is an abundant number, since it is smaller than the sum of its proper divisors (2832851460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2100123132 is a wasteful number, since it uses less digits than its factorization.

2100123132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2018 (or 2016 counting only the distinct ones).

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

The square root of 2100123132 is about 45827.1004101285. The cubic root of 2100123132 is about 1280.6041931132.

Adding to 2100123132 its reverse (2313210012), we get a palindrome (4413333144).

The spelling of 2100123132 in words is "two billion, one hundred million, one hundred twenty-three thousand, one hundred thirty-two".