1201202331 has 16 divisors (see below), whose sum is σ = 1857725184. Its totient is φ = 676155744.

The previous prime is 1201202309. The next prime is 1201202333. The reversal of 1201202331 is 1332021021.

It is not a de Polignac number, because 1201202331 - 2¹⁷ = 1201071259 is a prime.

It is a super-2 number, since 2×1201202331² = 2885774079999667122, 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 1201202331.

It is not an unprimeable number, because it can be changed into a prime (1201202333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 425460 + ... + 428273.

It is an arithmetic number, because the mean of its divisors is an integer number (116107824).

Almost surely, 2^1201202331 is an apocalyptic number.

1201202331 is a deficient number, since it is larger than the sum of its proper divisors (656522853).

1201202331 is an equidigital number, since it uses as much as digits as its factorization.

1201202331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853810.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1201202331 is about 34658.3659597506. The cubic root of 1201202331 is about 1063.0133583107.

Adding to 1201202331 its reverse (1332021021), we get a palindrome (2533223352).

The spelling of 1201202331 in words is "one billion, two hundred one million, two hundred two thousand, three hundred thirty-one".