1200241331 has 4 divisors (see below), whose sum is σ = 1206460392. Its totient is φ = 1194022272.

The previous prime is 1200241319. The next prime is 1200241333. The reversal of 1200241331 is 1331420021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1331420021 = 23 ⋅57887827.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1200241331 is a prime.

It is a super-2 number, since 2×1200241331² = 2881158505281303122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1200241333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3109241 + ... + 3109626.

It is an arithmetic number, because the mean of its divisors is an integer number (301615098).

Almost surely, 2^1200241331 is an apocalyptic number.

1200241331 is a deficient number, since it is larger than the sum of its proper divisors (6219061).

1200241331 is an equidigital number, since it uses as much as digits as its factorization.

1200241331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6219060.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1200241331 is about 34644.4992892090. The cubic root of 1200241331 is about 1062.7298012008.

Adding to 1200241331 its reverse (1331420021), we get a palindrome (2531661352).

The spelling of 1200241331 in words is "one billion, two hundred million, two hundred forty-one thousand, three hundred thirty-one".