1310232312 has 24 divisors (see below), whose sum is σ = 3548546040. Its totient is φ = 436744080.

The previous prime is 1310232289. The next prime is 1310232323. The reversal of 1310232312 is 2132320131.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×1310232312² = 3433417422817730688, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9098764 + ... + 9098907.

It is an arithmetic number, because the mean of its divisors is an integer number (147856085).

Almost surely, 2^1310232312 is an apocalyptic number.

1310232312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1310232312 is an abundant number, since it is smaller than the sum of its proper divisors (2238313728).

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

1310232312 is a wasteful number, since it uses less digits than its factorization.

1310232312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18197683 (or 18197676 counting only the distinct ones).

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

The square root of 1310232312 is about 36197.1312675466. The cubic root of 1310232312 is about 1094.2488574681.

Adding to 1310232312 its reverse (2132320131), we get a palindrome (3442552443).

The spelling of 1310232312 in words is "one billion, three hundred ten million, two hundred thirty-two thousand, three hundred twelve".