1173271421200 has 60 divisors (see below), whose sum is σ = 2909713155328. Its totient is φ = 454169577600.

The previous prime is 1173271421159. The next prime is 1173271421209. The reversal of 1173271421200 is 21241723711.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (1173271421209) 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, 47296932 + ... + 47321731.

Almost surely, 2^{1173271421200} is an apocalyptic number.

1173271421200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1173271421200 is an abundant number, since it is smaller than the sum of its proper divisors (1736441734128).

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

1173271421200 is a wasteful number, since it uses less digits than its factorization.

1173271421200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94618712 (or 94618701 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 31.

The spelling of 1173271421200 in words is "one trillion, one hundred seventy-three billion, two hundred seventy-one million, four hundred twenty-one thousand, two hundred".