1321344214100 has 36 divisors (see below), whose sum is σ = 2896876934364. Its totient is φ = 523088839680.

The previous prime is 1321344214093. The next prime is 1321344214111. The reversal of 1321344214100 is 14124431231.

It can be written as a sum of positive squares in 6 ways, for example, as 7666053136 + 1313678160964 = 87556^2 + 1146158^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1321344214100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68100827 + ... + 68120226.

Almost surely, 2^{1321344214100} is an apocalyptic number.

1321344214100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1321344214100 is an abundant number, since it is smaller than the sum of its proper divisors (1575532720264).

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

1321344214100 is a wasteful number, since it uses less digits than its factorization.

1321344214100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136221164 (or 136221157 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 1321344214100 its reverse (14124431231), we get a palindrome (1335468645331).

The spelling of 1321344214100 in words is "one trillion, three hundred twenty-one billion, three hundred forty-four million, two hundred fourteen thousand, one hundred".