23311220010 has 32 divisors (see below), whose sum is σ = 60250538880. Its totient is φ = 5738146368.

The previous prime is 23311219999. The next prime is 23311220011. The reversal of 23311220010 is 1002211332.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23311220011) 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, 29885790 + ... + 29886569.

It is an arithmetic number, because the mean of its divisors is an integer number (1882829340).

Almost surely, 2^23311220010 is an apocalyptic number.

23311220010 is an abundant number, since it is smaller than the sum of its proper divisors (36939318870).

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

23311220010 is a wasteful number, since it uses less digits than its factorization.

23311220010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59772382.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 23311220010 its reverse (1002211332), we get a palindrome (24313431342).

The spelling of 23311220010 in words is "twenty-three billion, three hundred eleven million, two hundred twenty thousand, ten".