1312010100 has 108 divisors (see below), whose sum is σ = 4119382176. Its totient is φ = 349277760.

The previous prime is 1312010057. The next prime is 1312010153. The reversal of 1312010100 is 10102131.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 883959 + ... + 885441.

Almost surely, 2^1312010100 is an apocalyptic number.

1312010100 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 1312010100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2059691088).

1312010100 is an abundant number, since it is smaller than the sum of its proper divisors (2807372076).

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

1312010100 is a wasteful number, since it uses less digits than its factorization.

1312010100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2486 (or 2476 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 1312010100 is about 36221.6799720830. The cubic root of 1312010100 is about 1094.7435441195.

Adding to 1312010100 its reverse (10102131), we get a palindrome (1322112231).

It can be divided in two parts, 13120 and 10100, that added together give a triangular number (23220 = T₂₁₅).

The spelling of 1312010100 in words is "one billion, three hundred twelve million, ten thousand, one hundred".