20123242404 has 12 divisors (see below), whose sum is σ = 46954232304. Its totient is φ = 6707747464.

The previous prime is 20123242393. The next prime is 20123242417. The reversal of 20123242404 is 40424232102.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 838468422 + ... + 838468445.

It is an arithmetic number, because the mean of its divisors is an integer number (3912852692).

Almost surely, 2^20123242404 is an apocalyptic number.

It is an amenable number.

20123242404 is an abundant number, since it is smaller than the sum of its proper divisors (26830989900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20123242404 is a wasteful number, since it uses less digits than its factorization.

20123242404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1676936874 (or 1676936872 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 20123242404 its reverse (40424232102), we get a palindrome (60547474506).

The spelling of 20123242404 in words is "twenty billion, one hundred twenty-three million, two hundred forty-two thousand, four hundred four".