20101301232320 has 112 divisors (see below), whose sum is σ = 59677369705728. Its totient is φ = 6265340636160.

The previous prime is 20101301232317. The next prime is 20101301232323. The reversal of 20101301232320 is 2323210310102.

It is an interprime number because it is at equal distance from previous prime (20101301232317) and next prime (20101301232323).

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×20101301232320² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 20101301232292 and 20101301232301.

It is not an unprimeable number, because it can be changed into a prime (20101301232323) 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, 407875142 + ... + 407924421.

Almost surely, 2^{20101301232320} is an apocalyptic number.

20101301232320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20101301232320 is an abundant number, since it is smaller than the sum of its proper divisors (39576068473408).

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

20101301232320 is a wasteful number, since it uses less digits than its factorization.

20101301232320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815799598 (or 815799588 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20101301232320 its reverse (2323210310102), we get a palindrome (22424511542422).

The spelling of 20101301232320 in words is "twenty trillion, one hundred one billion, three hundred one million, two hundred thirty-two thousand, three hundred twenty".