203111231331323 has 12 divisors (see below), whose sum is σ = 236953148563512. Its totient is φ = 173593625446080.

The previous prime is 203111231331301. The next prime is 203111231331341. The reversal of 203111231331323 is 323133132111302.

It is not a de Polignac number, because 203111231331323 - 2²² = 203111227137019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203111231331373) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5972788718 + ... + 5972822723.

It is an arithmetic number, because the mean of its divisors is an integer number (19746095713626).

Almost surely, 2^{203111231331323} is an apocalyptic number.

203111231331323 is a deficient number, since it is larger than the sum of its proper divisors (33841917232189).

203111231331323 is a wasteful number, since it uses less digits than its factorization.

203111231331323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11945611802 (or 11945611795 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 29.

Adding to 203111231331323 its reverse (323133132111302), we get a palindrome (526244363442625).

The spelling of 203111231331323 in words is "two hundred three trillion, one hundred eleven billion, two hundred thirty-one million, three hundred thirty-one thousand, three hundred twenty-three".