11312232330 has 64 divisors (see below), whose sum is σ = 31038289920. Its totient is φ = 2584782144.

The previous prime is 11312232329. The next prime is 11312232341. The reversal of 11312232330 is 3323221311.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 11312232297 and 11312232306.

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, 777987 + ... + 792393.

It is an arithmetic number, because the mean of its divisors is an integer number (484973280).

Almost surely, 2^11312232330 is an apocalyptic number.

11312232330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11312232330 is an abundant number, since it is smaller than the sum of its proper divisors (19726057590).

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

11312232330 is a wasteful number, since it uses less digits than its factorization.

11312232330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18163.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 11312232330 its reverse (3323221311), we get a palindrome (14635453641).

The spelling of 11312232330 in words is "eleven billion, three hundred twelve million, two hundred thirty-two thousand, three hundred thirty".