1202001331 has 4 divisors (see below), whose sum is σ = 1202070672. Its totient is φ = 1201931992.

The previous prime is 1202001329. The next prime is 1202001341. The reversal of 1202001331 is 1331002021.

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 1202001331 - 2¹ = 1202001329 is a prime.

It is a super-2 number, since 2×1202001331² = 2889614399451543122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1202001301) 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, 17205 + ... + 51961.

It is an arithmetic number, because the mean of its divisors is an integer number (300517668).

Almost surely, 2^1202001331 is an apocalyptic number.

1202001331 is a deficient number, since it is larger than the sum of its proper divisors (69341).

1202001331 is an equidigital number, since it uses as much as digits as its factorization.

1202001331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69340.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1202001331 is about 34669.8908420549. The cubic root of 1202001331 is about 1063.2489998291.

Adding to 1202001331 its reverse (1331002021), we get a palindrome (2533003352).

The spelling of 1202001331 in words is "one billion, two hundred two million, one thousand, three hundred thirty-one".