231103200020 has 48 divisors (see below), whose sum is σ = 605070200448. Its totient is φ = 72032165760.

The previous prime is 231103200019. The next prime is 231103200043. The reversal of 231103200020 is 20002301132.

It is a happy number.

It is a super-3 number, since 3×231103200020³ (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 231103199968 and 231103200004.

It is a congruent number.

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, 75031967 + ... + 75035046.

It is an arithmetic number, because the mean of its divisors is an integer number (12605629176).

Almost surely, 2^231103200020 is an apocalyptic number.

231103200020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231103200020 is an abundant number, since it is smaller than the sum of its proper divisors (373967000428).

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

231103200020 is a wasteful number, since it uses less digits than its factorization.

231103200020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150067040 (or 150067038 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 231103200020 its reverse (20002301132), we get a palindrome (251105501152).

The spelling of 231103200020 in words is "two hundred thirty-one billion, one hundred three million, two hundred thousand, twenty".