230331101220 has 108 divisors (see below), whose sum is σ = 767960766300. Its totient is φ = 55837837440.

The previous prime is 230331101197. The next prime is 230331101237. The reversal of 230331101220 is 22101133032.

230331101220 is a `hidden beast` number, since 230 + 3 + 311 + 0 + 122 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 158493164544 + 71837936676 = 398112^2 + 268026^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 230331101193 and 230331101202.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5265895 + ... + 5309454.

Almost surely, 2^230331101220 is an apocalyptic number.

230331101220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230331101220 is an abundant number, since it is smaller than the sum of its proper divisors (537629665080).

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

230331101220 is a wasteful number, since it uses less digits than its factorization.

230331101220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10575386 (or 10575370 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 230331101220 its reverse (22101133032), we get a palindrome (252432234252).

The spelling of 230331101220 in words is "two hundred thirty billion, three hundred thirty-one million, one hundred one thousand, two hundred twenty".