23121402404000 has 384 divisors, whose sum is σ = 62561519354880. Its totient is φ = 8366164992000.

The previous prime is 23121402403999. The next prime is 23121402404011. The reversal of 23121402404000 is 40420412132.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 146373062 + ... + 146530938.

It is an arithmetic number, because the mean of its divisors is an integer number (162920623320).

Almost surely, 2^{23121402404000} is an apocalyptic number.

23121402404000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23121402404000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31280759677440).

23121402404000 is an abundant number, since it is smaller than the sum of its proper divisors (39440116950880).

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

23121402404000 is a wasteful number, since it uses less digits than its factorization.

23121402404000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158009 (or 157991 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 23121402404000 its reverse (40420412132), we get a palindrome (23161822816132).

The spelling of 23121402404000 in words is "twenty-three trillion, one hundred twenty-one billion, four hundred two million, four hundred four thousand".