1312224232 has 16 divisors (see below), whose sum is σ = 2684095200. Its totient is φ = 596465520.

The previous prime is 1312224167. The next prime is 1312224239. The reversal of 1312224232 is 2324222131.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (1312224239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7455732 + ... + 7455907.

It is an arithmetic number, because the mean of its divisors is an integer number (167755950).

Almost surely, 2^1312224232 is an apocalyptic number.

It is an amenable number.

1312224232 is an abundant number, since it is smaller than the sum of its proper divisors (1371870968).

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

1312224232 is a wasteful number, since it uses less digits than its factorization.

1312224232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14911656 (or 14911652 counting only the distinct ones).

The product of its digits is 1152, while the sum is 22.

The square root of 1312224232 is about 36224.6357055527. The cubic root of 1312224232 is about 1094.8030982527.

Adding to 1312224232 its reverse (2324222131), we get a palindrome (3636446363).

The spelling of 1312224232 in words is "one billion, three hundred twelve million, two hundred twenty-four thousand, two hundred thirty-two".