20123130422 has 16 divisors (see below), whose sum is σ = 31544916480. Its totient is φ = 9609487272.

The previous prime is 20123130407. The next prime is 20123130437. The reversal of 20123130422 is 22403132102.

It is an interprime number because it is at equal distance from previous prime (20123130407) and next prime (20123130437).

It is a junction number, because it is equal to n+sod(n) for n = 20123130394 and 20123130403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 301598 + ... + 362225.

It is an arithmetic number, because the mean of its divisors is an integer number (1971557280).

Almost surely, 2^20123130422 is an apocalyptic number.

20123130422 is a deficient number, since it is larger than the sum of its proper divisors (11421786058).

20123130422 is a wasteful number, since it uses less digits than its factorization.

20123130422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664507.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20123130422 its reverse (22403132102), we get a palindrome (42526262524).

The spelling of 20123130422 in words is "twenty billion, one hundred twenty-three million, one hundred thirty thousand, four hundred twenty-two".