1312204433100 has 288 divisors, whose sum is σ = 4204680883200. Its totient is φ = 313313280000.

The previous prime is 1312204433039. The next prime is 1312204433119. The reversal of 1312204433100 is 13344022131.

It is a happy number.

It is a super-2 number, since 2×1312204433100² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 64316701 + ... + 64337099.

It is an arithmetic number, because the mean of its divisors is an integer number (14599586400).

Almost surely, 2^{1312204433100} is an apocalyptic number.

1312204433100 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 1312204433100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2102340441600).

1312204433100 is an abundant number, since it is smaller than the sum of its proper divisors (2892476450100).

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

1312204433100 is a wasteful number, since it uses less digits than its factorization.

1312204433100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20721 (or 20714 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 1312204433100 its reverse (13344022131), we get a palindrome (1325548455231).

The spelling of 1312204433100 in words is "one trillion, three hundred twelve billion, two hundred four million, four hundred thirty-three thousand, one hundred".