23303121001000 has 64 divisors (see below), whose sum is σ = 54610328944080. Its totient is φ = 9307397836800.

The previous prime is 23303121000983. The next prime is 23303121001001. The reversal of 23303121001000 is 10012130332.

It can be written as a sum of positive squares in 8 ways, for example, as 795061122244 + 22508059878756 = 891662^2 + 4744266^2 .

It is not an unprimeable number, because it can be changed into a prime (23303121001001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16639869 + ... + 17985868.

Almost surely, 2^{23303121001000} is an apocalyptic number.

23303121001000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23303121001000 is an abundant number, since it is smaller than the sum of its proper divisors (31307207943080).

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

23303121001000 is a wasteful number, since it uses less digits than its factorization.

23303121001000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34626431 (or 34626417 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 23303121001000 its reverse (10012130332), we get a palindrome (23313133131332).

The spelling of 23303121001000 in words is "twenty-three trillion, three hundred three billion, one hundred twenty-one million, one thousand".