20124232042 has 8 divisors (see below), whose sum is σ = 30193478532. Its totient is φ = 10059739200.

The previous prime is 20124232021. The next prime is 20124232049. The reversal of 20124232042 is 24023242102.

It can be written as a sum of positive squares in 2 ways, for example, as 19664172441 + 460059601 = 140229^2 + 21449^2 .

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

It is not an unprimeable number, because it can be changed into a prime (20124232049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1177809 + ... + 1194772.

Almost surely, 2^20124232042 is an apocalyptic number.

20124232042 is a deficient number, since it is larger than the sum of its proper divisors (10069246490).

20124232042 is a wasteful number, since it uses less digits than its factorization.

20124232042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2376824.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 20124232042 its reverse (24023242102), we get a palindrome (44147474144).

The spelling of 20124232042 in words is "twenty billion, one hundred twenty-four million, two hundred thirty-two thousand, forty-two".