20124476531 has 16 divisors (see below), whose sum is σ = 20724187008. Its totient is φ = 19530201600.

The previous prime is 20124476509. The next prime is 20124476539. The reversal of 20124476531 is 13567442102.

It is a cyclic number.

It is not a de Polignac number, because 20124476531 - 2⁶ = 20124476467 is a prime.

It is a super-2 number, since 2×20124476531² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20124476491 and 20124476500.

It is not an unprimeable number, because it can be changed into a prime (20124476539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10410041 + ... + 10411973.

It is an arithmetic number, because the mean of its divisors is an integer number (1295261688).

Almost surely, 2^20124476531 is an apocalyptic number.

20124476531 is a deficient number, since it is larger than the sum of its proper divisors (599710477).

20124476531 is a wasteful number, since it uses less digits than its factorization.

20124476531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3182.

The product of its (nonzero) digits is 40320, while the sum is 35.

The spelling of 20124476531 in words is "twenty billion, one hundred twenty-four million, four hundred seventy-six thousand, five hundred thirty-one".