20422431111004 has 96 divisors (see below), whose sum is σ = 40631423938560. Its totient is φ = 8903818598400.

The previous prime is 20422431111001. The next prime is 20422431111029. The reversal of 20422431111004 is 40011113422402.

It is a self number, because there is not a number n which added to its sum of digits gives 20422431111004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20422431111001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 796711372 + ... + 796737004.

It is an arithmetic number, because the mean of its divisors is an integer number (423243999360).

Almost surely, 2^{20422431111004} is an apocalyptic number.

It is an amenable number.

20422431111004 is a deficient number, since it is larger than the sum of its proper divisors (20208992827556).

20422431111004 is a wasteful number, since it uses less digits than its factorization.

20422431111004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27971 (or 27969 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 20422431111004 its reverse (40011113422402), we get a palindrome (60433544533406).

The spelling of 20422431111004 in words is "twenty trillion, four hundred twenty-two billion, four hundred thirty-one million, one hundred eleven thousand, four".