1316212512 has 24 divisors (see below), whose sum is σ = 3455058096. Its totient is φ = 438737472.

The previous prime is 1316212501. The next prime is 1316212523. The reversal of 1316212512 is 2152126131.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1316212501) and next prime (1316212523).

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

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 3 ways as a sum of consecutive naturals, for example, 6855178 + ... + 6855369.

It is an arithmetic number, because the mean of its divisors is an integer number (143960754).

Almost surely, 2^1316212512 is an apocalyptic number.

1316212512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1316212512 is an abundant number, since it is smaller than the sum of its proper divisors (2138845584).

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

1316212512 is a wasteful number, since it uses less digits than its factorization.

1316212512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13710560 (or 13710552 counting only the distinct ones).

The product of its digits is 720, while the sum is 24.

The square root of 1316212512 is about 36279.6432176503. The cubic root of 1316212512 is about 1095.9111317292.

Adding to 1316212512 its reverse (2152126131), we get a palindrome (3468338643).

The spelling of 1316212512 in words is "one billion, three hundred sixteen million, two hundred twelve thousand, five hundred twelve".