1202331131 has 4 divisors (see below), whose sum is σ = 1202401200. Its totient is φ = 1202261064.

The previous prime is 1202331107. The next prime is 1202331181. The reversal of 1202331131 is 1311332021.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1202331131 - 2²⁶ = 1135222267 is a prime.

It is a super-2 number, since 2×1202331131² = 2891200297143478322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1202331101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10010 + ... + 50048.

It is an arithmetic number, because the mean of its divisors is an integer number (300600300).

Almost surely, 2^1202331131 is an apocalyptic number.

1202331131 is a deficient number, since it is larger than the sum of its proper divisors (70069).

1202331131 is an equidigital number, since it uses as much as digits as its factorization.

1202331131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70068.

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

The square root of 1202331131 is about 34674.6468042574. The cubic root of 1202331131 is about 1063.3462341791.

Adding to 1202331131 its reverse (1311332021), we get a palindrome (2513663152).

The spelling of 1202331131 in words is "one billion, two hundred two million, three hundred thirty-one thousand, one hundred thirty-one".