23111932705280 has 160 divisors (see below), whose sum is σ = 57839445252864. Its totient is φ = 8840433074176.

The previous prime is 23111932705189. The next prime is 23111932705283. The reversal of 23111932705280 is 8250723911132.

It is a tau number, because it is divible by the number of its divisors (160).

It is a super-2 number, since 2×23111932705280² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23111932705283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 225635837 + ... + 225738243.

Almost surely, 2^{23111932705280} is an apocalyptic number.

23111932705280 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 23111932705280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28919722626432).

23111932705280 is an abundant number, since it is smaller than the sum of its proper divisors (34727512547584).

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

23111932705280 is a wasteful number, since it uses less digits than its factorization.

23111932705280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106286 (or 106270 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 44.

The spelling of 23111932705280 in words is "twenty-three trillion, one hundred eleven billion, nine hundred thirty-two million, seven hundred five thousand, two hundred eighty".