12732103920 has 160 divisors (see below), whose sum is σ = 41373851904. Its totient is φ = 3235276800.

The previous prime is 12732103907. The next prime is 12732103933. The reversal of 12732103920 is 2930123721.

It is an interprime number because it is at equal distance from previous prime (12732103907) and next prime (12732103933).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 408075 + ... + 438165.

Almost surely, 2^12732103920 is an apocalyptic number.

12732103920 is a gapful number since it is divisible by the number (10) 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 12732103920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20686925952).

12732103920 is an abundant number, since it is smaller than the sum of its proper divisors (28641747984).

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

12732103920 is a wasteful number, since it uses less digits than its factorization.

12732103920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30191 (or 30185 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 30.

The spelling of 12732103920 in words is "twelve billion, seven hundred thirty-two million, one hundred three thousand, nine hundred twenty".