1312244023100 has 144 divisors (see below), whose sum is σ = 3151642552800. Its totient is φ = 472252032000.

The previous prime is 1312244023093. The next prime is 1312244023117. The reversal of 1312244023100 is 13204422131.

It is a super-2 number, since 2×1312244023100² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3165890 + ... + 3556310.

Almost surely, 2^{1312244023100} is an apocalyptic number.

1312244023100 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 1312244023100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1575821276400).

1312244023100 is an abundant number, since it is smaller than the sum of its proper divisors (1839398529700).

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

1312244023100 is a wasteful number, since it uses less digits than its factorization.

1312244023100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390544 (or 390537 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 1312244023100 its reverse (13204422131), we get a palindrome (1325448445231).

The spelling of 1312244023100 in words is "one trillion, three hundred twelve billion, two hundred forty-four million, twenty-three thousand, one hundred".