1201331312 has 10 divisors (see below), whose sum is σ = 2327579448. Its totient is φ = 600665648.

The previous prime is 1201331311. The next prime is 1201331357. The reversal of 1201331312 is 2131331021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201331311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37541588 + ... + 37541619.

Almost surely, 2^1201331312 is an apocalyptic number.

It is an amenable number.

1201331312 is a deficient number, since it is larger than the sum of its proper divisors (1126248136).

1201331312 is an equidigital number, since it uses as much as digits as its factorization.

1201331312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75083215 (or 75083209 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1201331312 is about 34660.2266582318. The cubic root of 1201331312 is about 1063.0514045291.

Adding to 1201331312 its reverse (2131331021), we get a palindrome (3332662333).

The spelling of 1201331312 in words is "one billion, two hundred one million, three hundred thirty-one thousand, three hundred twelve".