2100431142 has 16 divisors (see below), whose sum is σ = 4667624880. Its totient is φ = 700143696.

The previous prime is 2100431087. The next prime is 2100431147. The reversal of 2100431142 is 2411340012.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100431147) 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, 19448383 + ... + 19448490.

It is an arithmetic number, because the mean of its divisors is an integer number (291726555).

Almost surely, 2^2100431142 is an apocalyptic number.

2100431142 is an abundant number, since it is smaller than the sum of its proper divisors (2567193738).

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

2100431142 is a wasteful number, since it uses less digits than its factorization.

2100431142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38896884 (or 38896878 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2100431142 is about 45830.4608530178. The cubic root of 2100431142 is about 1280.6667957308. Note that the first 3 decimals are identical.

Adding to 2100431142 its reverse (2411340012), we get a palindrome (4511771154).

The spelling of 2100431142 in words is "two billion, one hundred million, four hundred thirty-one thousand, one hundred forty-two".