1312231141320 has 128 divisors (see below), whose sum is σ = 4295099105280. Its totient is φ = 318077792000.

The previous prime is 1312231141301. The next prime is 1312231141337. The reversal of 1312231141320 is 231411322131.

It is a super-2 number, since 2×1312231141320² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 11600635 + ... + 11713205.

It is an arithmetic number, because the mean of its divisors is an integer number (33555461760).

Almost surely, 2^{1312231141320} is an apocalyptic number.

1312231141320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312231141320 is an abundant number, since it is smaller than the sum of its proper divisors (2982867963960).

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

1312231141320 is a wasteful number, since it uses less digits than its factorization.

1312231141320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121427 (or 121423 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 1312231141320 its reverse (231411322131), we get a palindrome (1543642463451).

The spelling of 1312231141320 in words is "one trillion, three hundred twelve billion, two hundred thirty-one million, one hundred forty-one thousand, three hundred twenty".