23311221313320 has 80 divisors (see below), whose sum is σ = 78351604980660. Its totient is φ = 6216325682688.

The previous prime is 23311221313301. The next prime is 23311221313343. The reversal of 23311221313320 is 2331312211332.

23311221313320 is a `hidden beast` number, since 2 + 3 + 3 + 1 + 1 + 2 + 21 + 313 + 320 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 23311109672964 + 111640356 = 4828158^2 + 10566^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3597407457 + ... + 3597413936.

Almost surely, 2^{23311221313320} is an apocalyptic number.

23311221313320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23311221313320 is an abundant number, since it is smaller than the sum of its proper divisors (55040383667340).

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

23311221313320 is a wasteful number, since it uses less digits than its factorization.

23311221313320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7194821416 (or 7194821403 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 23311221313320 its reverse (2331312211332), we get a palindrome (25642533524652).

The spelling of 23311221313320 in words is "twenty-three trillion, three hundred eleven billion, two hundred twenty-one million, three hundred thirteen thousand, three hundred twenty".