2311210123 has 2 divisors, whose sum is σ = 2311210124. Its totient is φ = 2311210122.

The previous prime is 2311210081. The next prime is 2311210157. The reversal of 2311210123 is 3210121132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2311210123 - 2⁹ = 2311209611 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2311210097 and 2311210106.

It is not a weakly prime, because it can be changed into another prime (2311210423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1155605061 + 1155605062.

It is an arithmetic number, because the mean of its divisors is an integer number (1155605062).

Almost surely, 2^2311210123 is an apocalyptic number.

2311210123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2311210123 is an equidigital number, since it uses as much as digits as its factorization.

2311210123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2311210123 is about 48075.0467810485. The cubic root of 2311210123 is about 1322.1472022516.

Adding to 2311210123 its reverse (3210121132), we get a palindrome (5521331255).

The spelling of 2311210123 in words is "two billion, three hundred eleven million, two hundred ten thousand, one hundred twenty-three".