1200112320 has 112 divisors (see below), whose sum is σ = 4156789248. Its totient is φ = 290933760.

The previous prime is 1200112301. The next prime is 1200112351. The reversal of 1200112320 is 232110021.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1200112296 and 1200112305.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46264 + ... + 67383.

Almost surely, 2^1200112320 is an apocalyptic number.

1200112320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200112320 is an abundant number, since it is smaller than the sum of its proper divisors (2956676928).

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

1200112320 is a wasteful number, since it uses less digits than its factorization.

1200112320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113678 (or 113668 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1200112320 is about 34642.6373129991. The cubic root of 1200112320 is about 1062.6917230956.

Adding to 1200112320 its reverse (232110021), we get a palindrome (1432222341).

The spelling of 1200112320 in words is "one billion, two hundred million, one hundred twelve thousand, three hundred twenty".