1323255013400 has 96 divisors (see below), whose sum is σ = 3267952601040. Its totient is φ = 496574607360.

The previous prime is 1323255013363. The next prime is 1323255013411. The reversal of 1323255013400 is 43105523231.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 442487 + ... + 1685913.

Almost surely, 2^{1323255013400} is an apocalyptic number.

1323255013400 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 1323255013400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1633976300520).

1323255013400 is an abundant number, since it is smaller than the sum of its proper divisors (1944697587640).

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

1323255013400 is a wasteful number, since it uses less digits than its factorization.

1323255013400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243773 (or 1243764 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 29.

The spelling of 1323255013400 in words is "one trillion, three hundred twenty-three billion, two hundred fifty-five million, thirteen thousand, four hundred".