2100123134 has 4 divisors (see below), whose sum is σ = 3150184704. Its totient is φ = 1050061566.

The previous prime is 2100123097. The next prime is 2100123211. The reversal of 2100123134 is 4313210012.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525030782 + ... + 525030785.

It is an arithmetic number, because the mean of its divisors is an integer number (787546176).

Almost surely, 2^2100123134 is an apocalyptic number.

2100123134 is a deficient number, since it is larger than the sum of its proper divisors (1050061570).

2100123134 is a wasteful number, since it uses less digits than its factorization.

2100123134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050061569.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2100123134 is about 45827.1004319497. The cubic root of 2100123134 is about 1280.6041935197.

Adding to 2100123134 its reverse (4313210012), we get a palindrome (6413333146).

The spelling of 2100123134 in words is "two billion, one hundred million, one hundred twenty-three thousand, one hundred thirty-four".