1252310312 has 48 divisors (see below), whose sum is σ = 2606706900. Its totient is φ = 563552000.

The previous prime is 1252310309. The next prime is 1252310327. The reversal of 1252310312 is 2130132521.

It can be written as a sum of positive squares in 2 ways, for example, as 1203673636 + 48636676 = 34694^2 + 6974^2 .

It is a super-2 number, since 2×1252310312² = 3136562235083074688, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91364 + ... + 104172.

Almost surely, 2^1252310312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1252310312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1303353450).

1252310312 is an abundant number, since it is smaller than the sum of its proper divisors (1354396588).

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

1252310312 is a wasteful number, since it uses less digits than its factorization.

1252310312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12938 (or 12923 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1252310312 is about 35387.9967220525. The cubic root of 1252310312 is about 1077.8805920773.

Adding to 1252310312 its reverse (2130132521), we get a palindrome (3382442833).

The spelling of 1252310312 in words is "one billion, two hundred fifty-two million, three hundred ten thousand, three hundred twelve".