20302231132320 has 48 divisors (see below), whose sum is σ = 63952028068320. Its totient is φ = 5413928301824.

The previous prime is 20302231132291. The next prime is 20302231132343. The reversal of 20302231132320 is 2323113220302.

It is a tau number, because it is divible by the number of its divisors (48).

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21148156950 + ... + 21148157909.

It is an arithmetic number, because the mean of its divisors is an integer number (1332333918090).

Almost surely, 2^{20302231132320} is an apocalyptic number.

20302231132320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20302231132320 is an abundant number, since it is smaller than the sum of its proper divisors (43649796936000).

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

20302231132320 is a wasteful number, since it uses less digits than its factorization.

20302231132320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42296314877 (or 42296314869 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 20302231132320 its reverse (2323113220302), we get a palindrome (22625344352622).

The spelling of 20302231132320 in words is "twenty trillion, three hundred two billion, two hundred thirty-one million, one hundred thirty-two thousand, three hundred twenty".