1312600100 has 36 divisors (see below), whose sum is σ = 3255249984. Its totient is φ = 450034080.

The previous prime is 1312600099. The next prime is 1312600139. The reversal of 1312600100 is 10062131.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 936872 + ... + 938271.

Almost surely, 2^1312600100 is an apocalyptic number.

1312600100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312600100 is an abundant number, since it is smaller than the sum of its proper divisors (1942649884).

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

1312600100 is a wasteful number, since it uses less digits than its factorization.

1312600100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1875164 (or 1875157 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1312600100 is about 36229.8233503836. The cubic root of 1312600100 is about 1094.9076185416.

Adding to 1312600100 its reverse (10062131), we get a palindrome (1322662231).

The spelling of 1312600100 in words is "one billion, three hundred twelve million, six hundred thousand, one hundred".