20112312422004 has 96 divisors (see below), whose sum is σ = 52275066028416. Its totient is φ = 5966561402880.

The previous prime is 20112312421997. The next prime is 20112312422011. The reversal of 20112312422004 is 40022421321102.

It is an interprime number because it is at equal distance from previous prime (20112312421997) and next prime (20112312422011).

It is a super-2 number, since 2×20112312422004² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51844 + ... + 6342500.

It is an arithmetic number, because the mean of its divisors is an integer number (544531937796).

Almost surely, 2^{20112312422004} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20112312422004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26137533014208).

20112312422004 is an abundant number, since it is smaller than the sum of its proper divisors (32162753606412).

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

20112312422004 is a wasteful number, since it uses less digits than its factorization.

20112312422004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6291185 (or 6291183 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 20112312422004 its reverse (40022421321102), we get a palindrome (60134733743106).

The spelling of 20112312422004 in words is "twenty trillion, one hundred twelve billion, three hundred twelve million, four hundred twenty-two thousand, four".