12311011230 has 32 divisors (see below), whose sum is σ = 33767345664. Its totient is φ = 2813945376.

The previous prime is 12311011201. The next prime is 12311011231. The reversal of 12311011230 is 3211011321.

It is a happy number.

It is a super-2 number, since 2×12311011230² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12311011231) 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, 29311722 + ... + 29312141.

It is an arithmetic number, because the mean of its divisors is an integer number (1055229552).

Almost surely, 2^12311011230 is an apocalyptic number.

12311011230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12311011230 is an abundant number, since it is smaller than the sum of its proper divisors (21456334434).

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

12311011230 is a wasteful number, since it uses less digits than its factorization.

12311011230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58623880.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 12311011230 its reverse (3211011321), we get a palindrome (15522022551).

Subtracting from 12311011230 its reverse (3211011321), we obtain a palindrome (9099999909).

The spelling of 12311011230 in words is "twelve billion, three hundred eleven million, eleven thousand, two hundred thirty".