20123130424 has 32 divisors (see below), whose sum is σ = 38411938800. Its totient is φ = 9880485120.

The previous prime is 20123130407. The next prime is 20123130437. The reversal of 20123130424 is 42403132102.

It is a super-2 number, since 2×20123130424² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20123130395 and 20123130404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268764 + ... + 335380.

Almost surely, 2^20123130424 is an apocalyptic number.

It is an amenable number.

20123130424 is a deficient number, since it is larger than the sum of its proper divisors (18288808376).

20123130424 is a wasteful number, since it uses less digits than its factorization.

20123130424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67303 (or 67299 counting only the distinct ones).

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

Adding to 20123130424 its reverse (42403132102), we get a palindrome (62526262526).

The spelling of 20123130424 in words is "twenty billion, one hundred twenty-three million, one hundred thirty thousand, four hundred twenty-four".