1200331031023 has 4 divisors (see below), whose sum is σ = 1200529340568. Its totient is φ = 1200132721480.

The previous prime is 1200331031021. The next prime is 1200331031027. The reversal of 1200331031023 is 3201301330021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1200331031023 - 2¹ = 1200331031021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200331031021) 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, 99145693 + ... + 99157798.

It is an arithmetic number, because the mean of its divisors is an integer number (300132335142).

Almost surely, 2^{1200331031023} is an apocalyptic number.

1200331031023 is a deficient number, since it is larger than the sum of its proper divisors (198309545).

1200331031023 is an equidigital number, since it uses as much as digits as its factorization.

1200331031023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198309544.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 1200331031023 its reverse (3201301330021), we get a palindrome (4401632361044).

The spelling of 1200331031023 in words is "one trillion, two hundred billion, three hundred thirty-one million, thirty-one thousand, twenty-three".