2131123142 has 8 divisors (see below), whose sum is σ = 3200315832. Its totient is φ = 1064351200.

The previous prime is 2131123109. The next prime is 2131123153. The reversal of 2131123142 is 2413211312.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 602984 + ... + 606507.

It is an arithmetic number, because the mean of its divisors is an integer number (400039479).

Almost surely, 2^2131123142 is an apocalyptic number.

2131123142 is a deficient number, since it is larger than the sum of its proper divisors (1069192690).

2131123142 is a wasteful number, since it uses less digits than its factorization.

2131123142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1210374.

The product of its digits is 288, while the sum is 20.

The square root of 2131123142 is about 46164.0893119316. The cubic root of 2131123142 is about 1286.8744599687.

Adding to 2131123142 its reverse (2413211312), we get a palindrome (4544334454).

The spelling of 2131123142 in words is "two billion, one hundred thirty-one million, one hundred twenty-three thousand, one hundred forty-two".