123853811 has 2 divisors, whose sum is σ = 123853812. Its totient is φ = 123853810.

The previous prime is 123853777. The next prime is 123853831. The reversal of 123853811 is 118358321.

It is a strong prime.

It is an emirp because it is prime and its reverse (118358321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123853811 - 2¹⁰ = 123852787 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (123853831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61926905 + 61926906.

It is an arithmetic number, because the mean of its divisors is an integer number (61926906).

Almost surely, 2^123853811 is an apocalyptic number.

123853811 is a deficient number, since it is larger than the sum of its proper divisors (1).

123853811 is an equidigital number, since it uses as much as digits as its factorization.

123853811 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 32.

The square root of 123853811 is about 11128.9627099744. The cubic root of 123853811 is about 498.4670529498.

The spelling of 123853811 in words is "one hundred twenty-three million, eight hundred fifty-three thousand, eight hundred eleven".