231103132232220 has 96 divisors (see below), whose sum is σ = 719026865793600. Its totient is φ = 61624129646592.

The previous prime is 231103132232173. The next prime is 231103132232239. The reversal of 231103132232220 is 22232231301132.

231103132232220 is a `hidden beast` number, since 2 + 3 + 1 + 1 + 0 + 313 + 2 + 2 + 322 + 20 = 666.

It is a super-2 number, since 2×231103132232220² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1824109 + ... + 21576228.

It is an arithmetic number, because the mean of its divisors is an integer number (7489863185350).

Almost surely, 2^{231103132232220} is an apocalyptic number.

231103132232220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231103132232220 is an abundant number, since it is smaller than the sum of its proper divisors (487923733561380).

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

231103132232220 is a wasteful number, since it uses less digits than its factorization.

231103132232220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23418644 (or 23418636 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 231103132232220 its reverse (22232231301132), we get a palindrome (253335363533352).

The spelling of 231103132232220 in words is "two hundred thirty-one trillion, one hundred three billion, one hundred thirty-two million, two hundred thirty-two thousand, two hundred twenty".