2311100123 has 2 divisors, whose sum is σ = 2311100124. Its totient is φ = 2311100122.

The previous prime is 2311100119. The next prime is 2311100137. The reversal of 2311100123 is 3210011132.

It is an a-pointer prime, because the next prime (2311100137) can be obtained adding 2311100123 to its sum of digits (14).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2311100123 - 2² = 2311100119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2311100098 and 2311100107.

It is not a weakly prime, because it can be changed into another prime (2311100723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1155550061 + 1155550062.

It is an arithmetic number, because the mean of its divisors is an integer number (1155550062).

Almost surely, 2^2311100123 is an apocalyptic number.

2311100123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2311100123 is an equidigital number, since it uses as much as digits as its factorization.

2311100123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 2311100123 is about 48073.9027227871. The cubic root of 2311100123 is about 1322.1262264435.

Adding to 2311100123 its reverse (3210011132), we get a palindrome (5521111255).

The spelling of 2311100123 in words is "two billion, three hundred eleven million, one hundred thousand, one hundred twenty-three".