2311123001203 has 2 divisors, whose sum is σ = 2311123001204. Its totient is φ = 2311123001202.

The previous prime is 2311123001171. The next prime is 2311123001221. The reversal of 2311123001203 is 3021003211132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2311123001203 - 2⁵ = 2311123001171 is a prime.

It is not a weakly prime, because it can be changed into another prime (2311123001233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1155561500601 + 1155561500602.

It is an arithmetic number, because the mean of its divisors is an integer number (1155561500602).

Almost surely, 2^{2311123001203} is an apocalyptic number.

2311123001203 is a deficient number, since it is larger than the sum of its proper divisors (1).

2311123001203 is an equidigital number, since it uses as much as digits as its factorization.

2311123001203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 2311123001203 its reverse (3021003211132), we get a palindrome (5332126212335).

The spelling of 2311123001203 in words is "two trillion, three hundred eleven billion, one hundred twenty-three million, one thousand, two hundred three".