21320133130032 has 80 divisors (see below), whose sum is σ = 60557114191872. Its totient is φ = 6409775151360.

The previous prime is 21320133129947. The next prime is 21320133130073. The reversal of 21320133130032 is 23003133102312.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 21320133129984 and 21320133130011.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158905543 + ... + 159039654.

Almost surely, 2^{21320133130032} is an apocalyptic number.

21320133130032 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21320133130032 is an abundant number, since it is smaller than the sum of its proper divisors (39236981061840).

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

21320133130032 is a wasteful number, since it uses less digits than its factorization.

21320133130032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317945346 (or 317945340 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 21320133130032 its reverse (23003133102312), we get a palindrome (44323266232344).

The spelling of 21320133130032 in words is "twenty-one trillion, three hundred twenty billion, one hundred thirty-three million, one hundred thirty thousand, thirty-two".