1201331512 has 32 divisors (see below), whose sum is σ = 2284646400. Its totient is φ = 592117344.

The previous prime is 1201331497. The next prime is 1201331513. The reversal of 1201331512 is 2151331021.

It is a super-2 number, since 2×1201331512² = 2886394803448412288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1201331512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201331513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 559513 + ... + 561655.

It is an arithmetic number, because the mean of its divisors is an integer number (71395200).

Almost surely, 2^1201331512 is an apocalyptic number.

It is an amenable number.

1201331512 is a deficient number, since it is larger than the sum of its proper divisors (1083314888).

1201331512 is a wasteful number, since it uses less digits than its factorization.

1201331512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3115 (or 3111 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 1201331512 is about 34660.2295433830. The cubic root of 1201331512 is about 1063.0514635221.

Adding to 1201331512 its reverse (2151331021), we get a palindrome (3352662533).

The spelling of 1201331512 in words is "one billion, two hundred one million, three hundred thirty-one thousand, five hundred twelve".