2102431142 has 24 divisors (see below), whose sum is σ = 3679099200. Its totient is φ = 898445520.

The previous prime is 2102431141. The next prime is 2102431147. The reversal of 2102431142 is 2411342012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102431141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3467 + ... + 64937.

It is an arithmetic number, because the mean of its divisors is an integer number (153295800).

Almost surely, 2^2102431142 is an apocalyptic number.

2102431142 is a deficient number, since it is larger than the sum of its proper divisors (1576668058).

2102431142 is a wasteful number, since it uses less digits than its factorization.

2102431142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61836 (or 61829 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 2102431142 is about 45852.2752107243. The cubic root of 2102431142 is about 1281.0731442204.

Adding to 2102431142 its reverse (2411342012), we get a palindrome (4513773154).

The spelling of 2102431142 in words is "two billion, one hundred two million, four hundred thirty-one thousand, one hundred forty-two".