1203203232311 has 4 divisors (see below), whose sum is σ = 1203355409592. Its totient is φ = 1203051055032.

The previous prime is 1203203232289. The next prime is 1203203232313. The reversal of 1203203232311 is 1132323023021.

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 1203203232311 - 2²² = 1203199038007 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 (1203203232313) 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, 76076780 + ... + 76092593.

It is an arithmetic number, because the mean of its divisors is an integer number (300838852398).

Almost surely, 2^{1203203232311} is an apocalyptic number.

1203203232311 is a deficient number, since it is larger than the sum of its proper divisors (152177281).

1203203232311 is an equidigital number, since it uses as much as digits as its factorization.

1203203232311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152177280.

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

Adding to 1203203232311 its reverse (1132323023021), we get a palindrome (2335526255332).

The spelling of 1203203232311 in words is "one trillion, two hundred three billion, two hundred three million, two hundred thirty-two thousand, three hundred eleven".