1313212400 has 30 divisors (see below), whose sum is σ = 3154993752. Its totient is φ = 525284800.

The previous prime is 1313212367. The next prime is 1313212409. The reversal of 1313212400 is 42123131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313212409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1641116 + ... + 1641915.

Almost surely, 2^1313212400 is an apocalyptic number.

1313212400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1313212400 is an abundant number, since it is smaller than the sum of its proper divisors (1841781352).

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

1313212400 is a wasteful number, since it uses less digits than its factorization.

1313212400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3283049 (or 3283038 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1313212400 is about 36238.2725857621. The cubic root of 1313212400 is about 1095.0778424398.

Adding to 1313212400 its reverse (42123131), we get a palindrome (1355335531).

The spelling of 1313212400 in words is "one billion, three hundred thirteen million, two hundred twelve thousand, four hundred".