20531124914 has 4 divisors (see below), whose sum is σ = 30796687374. Its totient is φ = 10265562456.

The previous prime is 20531124877. The next prime is 20531124941. The reversal of 20531124914 is 41942113502.

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., 19665294289 + 865830625 = 140233^2 + 29425^2 .

It is a super-3 number, since 3×20531124914³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5132781227 + ... + 5132781230.

Almost surely, 2^20531124914 is an apocalyptic number.

20531124914 is a deficient number, since it is larger than the sum of its proper divisors (10265562460).

20531124914 is a wasteful number, since it uses less digits than its factorization.

20531124914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10265562459.

The product of its (nonzero) digits is 8640, while the sum is 32.

The spelling of 20531124914 in words is "twenty billion, five hundred thirty-one million, one hundred twenty-four thousand, nine hundred fourteen".