1312443541200 has 120 divisors (see below), whose sum is σ = 4586393657376. Its totient is φ = 318168128000.

The previous prime is 1312443541163. The next prime is 1312443541219. The reversal of 1312443541200 is 21453442131.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 49700571 + ... + 49726970.

Almost surely, 2^{1312443541200} is an apocalyptic number.

1312443541200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312443541200 is an abundant number, since it is smaller than the sum of its proper divisors (3273950116176).

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

1312443541200 is a wasteful number, since it uses less digits than its factorization.

1312443541200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99427573 (or 99427562 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 1312443541200 its reverse (21453442131), we get a palindrome (1333896983331).

The spelling of 1312443541200 in words is "one trillion, three hundred twelve billion, four hundred forty-three million, five hundred forty-one thousand, two hundred".