1312123232100 has 36 divisors (see below), whose sum is σ = 3796409885744. Its totient is φ = 349899528480.

The previous prime is 1312123232089. The next prime is 1312123232107. The reversal of 1312123232100 is 12323212131.

It is not an unprimeable number, because it can be changed into a prime (1312123232107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2186871754 + ... + 2186872353.

Almost surely, 2^{1312123232100} is an apocalyptic number.

1312123232100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312123232100 is an abundant number, since it is smaller than the sum of its proper divisors (2484286653644).

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

1312123232100 is a wasteful number, since it uses less digits than its factorization.

1312123232100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4373744124 (or 4373744117 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1312123232100 its reverse (12323212131), we get a palindrome (1324446444231).

The spelling of 1312123232100 in words is "one trillion, three hundred twelve billion, one hundred twenty-three million, two hundred thirty-two thousand, one hundred".