13233331920 has 80 divisors (see below), whose sum is σ = 41040498240. Its totient is φ = 3527411712.

The previous prime is 13233331919. The next prime is 13233331921. The reversal of 13233331920 is 2913333231.

It is an interprime number because it is at equal distance from previous prime (13233331919) and next prime (13233331921).

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13233331921) 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, 639496 + ... + 659864.

It is an arithmetic number, because the mean of its divisors is an integer number (513006228).

Almost surely, 2^13233331920 is an apocalyptic number.

13233331920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13233331920 is an abundant number, since it is smaller than the sum of its proper divisors (27807166320).

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

13233331920 is a wasteful number, since it uses less digits than its factorization.

13233331920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23092 (or 23086 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 30.

The spelling of 13233331920 in words is "thirteen billion, two hundred thirty-three million, three hundred thirty-one thousand, nine hundred twenty".