1201331344 has 40 divisors (see below), whose sum is σ = 2418123008. Its totient is φ = 577549440.

The previous prime is 1201331311. The next prime is 1201331357. The reversal of 1201331344 is 4431331021.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70159 + ... + 85585.

Almost surely, 2^1201331344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1201331344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1209061504).

1201331344 is an abundant number, since it is smaller than the sum of its proper divisors (1216791664).

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

1201331344 is a wasteful number, since it uses less digits than its factorization.

1201331344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15623 (or 15617 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1201331344 is about 34660.2271198560. The cubic root of 1201331344 is about 1063.0514139680.

Adding to 1201331344 its reverse (4431331021), we get a palindrome (5632662365).

The spelling of 1201331344 in words is "one billion, two hundred one million, three hundred thirty-one thousand, three hundred forty-four".