1200403131233 has 4 divisors (see below), whose sum is σ = 1200545014548. Its totient is φ = 1200261247920.

The previous prime is 1200403131223. The next prime is 1200403131251. The reversal of 1200403131233 is 3321313040021.

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

It can be written as a sum of positive squares in 2 ways, for example, as 653974663969 + 546428467264 = 808687^2 + 739208^2 .

It is a cyclic number.

It is not a de Polignac number, because 1200403131233 - 2¹⁰ = 1200403130209 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1200403131199 and 1200403131208.

It is not an unprimeable number, because it can be changed into a prime (1200403131203) 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, 70928966 + ... + 70945887.

It is an arithmetic number, because the mean of its divisors is an integer number (300136253637).

Almost surely, 2^{1200403131233} is an apocalyptic number.

It is an amenable number.

1200403131233 is a deficient number, since it is larger than the sum of its proper divisors (141883315).

1200403131233 is an equidigital number, since it uses as much as digits as its factorization.

1200403131233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141883314.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 1200403131233 its reverse (3321313040021), we get a palindrome (4521716171254).

The spelling of 1200403131233 in words is "one trillion, two hundred billion, four hundred three million, one hundred thirty-one thousand, two hundred thirty-three".