1201202831 has 2 divisors, whose sum is σ = 1201202832. Its totient is φ = 1201202830.

The previous prime is 1201202801. The next prime is 1201202887. The reversal of 1201202831 is 1382021021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1201202831 - 2¹⁸ = 1200940687 is a prime.

It is a super-2 number, since 2×1201202831² = 2885776482404829122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1201202801) 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 as a sum of consecutive naturals, namely, 600601415 + 600601416.

It is an arithmetic number, because the mean of its divisors is an integer number (600601416).

Almost surely, 2^1201202831 is an apocalyptic number.

1201202831 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201202831 is an equidigital number, since it uses as much as digits as its factorization.

1201202831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 1201202831 is about 34658.3731730155. The cubic root of 1201202831 is about 1063.0135058036.

Adding to 1201202831 its reverse (1382021021), we get a palindrome (2583223852).

The spelling of 1201202831 in words is "one billion, two hundred one million, two hundred two thousand, eight hundred thirty-one".