1312023288 has 32 divisors (see below), whose sum is σ = 3360062160. Its totient is φ = 426673920.

The previous prime is 1312023287. The next prime is 1312023289. The reversal of 1312023288 is 8823202131.

It is an interprime number because it is at equal distance from previous prime (1312023287) and next prime (1312023289).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312023287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 665695 + ... + 667662.

Almost surely, 2^1312023288 is an apocalyptic number.

It is an amenable number.

1312023288 is an abundant number, since it is smaller than the sum of its proper divisors (2048038872).

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

1312023288 is a wasteful number, since it uses less digits than its factorization.

1312023288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333407 (or 1333403 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 1312023288 is about 36221.8620172956. The cubic root of 1312023288 is about 1094.7472121374.

The spelling of 1312023288 in words is "one billion, three hundred twelve million, twenty-three thousand, two hundred eighty-eight".