11312011230 has 64 divisors (see below), whose sum is σ = 29859314688. Its totient is φ = 2725246080.

The previous prime is 11312011199. The next prime is 11312011253. The reversal of 11312011230 is 3211021311.

It is a happy number.

It is a super-2 number, since 2×11312011230² (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 an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 290236 + ... + 326895.

It is an arithmetic number, because the mean of its divisors is an integer number (466551792).

Almost surely, 2^11312011230 is an apocalyptic number.

11312011230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11312011230 is an abundant number, since it is smaller than the sum of its proper divisors (18547303458).

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

11312011230 is a wasteful number, since it uses less digits than its factorization.

11312011230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617201.

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

Adding to 11312011230 its reverse (3211021311), we get a palindrome (14523032541).

The spelling of 11312011230 in words is "eleven billion, three hundred twelve million, eleven thousand, two hundred thirty".