1312341400 has 96 divisors (see below), whose sum is σ = 3227360400. Its totient is φ = 494899200.

The previous prime is 1312341389. The next prime is 1312341413. The reversal of 1312341400 is 41432131.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 915084 + ... + 916516.

Almost surely, 2^1312341400 is an apocalyptic number.

1312341400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1312341400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1613680200).

1312341400 is an abundant number, since it is smaller than the sum of its proper divisors (1915019000).

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

1312341400 is a wasteful number, since it uses less digits than its factorization.

1312341400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1709 (or 1700 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1312341400 is about 36226.2529113901. The cubic root of 1312341400 is about 1094.8356821329.

Adding to 1312341400 its reverse (41432131), we get a palindrome (1353773531).

The spelling of 1312341400 in words is "one billion, three hundred twelve million, three hundred forty-one thousand, four hundred".