23120001000 has 192 divisors, whose sum is σ = 78344884800. Its totient is φ = 6149616000.

The previous prime is 23120000999. The next prime is 23120001013. The reversal of 23120001000 is 10002132.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3767935 + ... + 3774065.

It is an arithmetic number, because the mean of its divisors is an integer number (408046275).

Almost surely, 2^23120001000 is an apocalyptic number.

23120001000 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 23120001000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39172442400).

23120001000 is an abundant number, since it is smaller than the sum of its proper divisors (55224883800).

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

23120001000 is a wasteful number, since it uses less digits than its factorization.

23120001000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6577 (or 6560 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

Adding to 23120001000 its reverse (10002132), we get a palindrome (23130003132).

The spelling of 23120001000 in words is "twenty-three billion, one hundred twenty million, one thousand".