20132431042 has 4 divisors (see below), whose sum is σ = 30198646566. Its totient is φ = 10066215520.

The previous prime is 20132431031. The next prime is 20132431073. The reversal of 20132431042 is 24013423102.

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

It can be written as a sum of positive squares in only one way, i.e., 19815911361 + 316519681 = 140769^2 + 17791^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5033107759 + ... + 5033107762.

Almost surely, 2^20132431042 is an apocalyptic number.

20132431042 is a deficient number, since it is larger than the sum of its proper divisors (10066215524).

20132431042 is a wasteful number, since it uses less digits than its factorization.

20132431042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10066215523.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 20132431042 its reverse (24013423102), we get a palindrome (44145854144).

The spelling of 20132431042 in words is "twenty billion, one hundred thirty-two million, four hundred thirty-one thousand, forty-two".