123022811 has 2 divisors, whose sum is σ = 123022812. Its totient is φ = 123022810.

The previous prime is 123022807. The next prime is 123022813. The reversal of 123022811 is 118220321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123022811 - 2² = 123022807 is a prime.

It is a super-2 number, since 2×123022811² = 30269224052683442, which contains 22 as substring.

Together with 123022813, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (123022813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61511405 + 61511406.

It is an arithmetic number, because the mean of its divisors is an integer number (61511406).

Almost surely, 2^123022811 is an apocalyptic number.

123022811 is a deficient number, since it is larger than the sum of its proper divisors (1).

123022811 is an equidigital number, since it uses as much as digits as its factorization.

123022811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 123022811 is about 11091.5648580351. The cubic root of 123022811 is about 497.3497249044.

The spelling of 123022811 in words is "one hundred twenty-three million, twenty-two thousand, eight hundred eleven".