123804971 has 2 divisors, whose sum is σ = 123804972. Its totient is φ = 123804970.

The previous prime is 123804943. The next prime is 123804977. The reversal of 123804971 is 179408321.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123804971 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (123804977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61902485 + 61902486.

It is an arithmetic number, because the mean of its divisors is an integer number (61902486).

Almost surely, 2^123804971 is an apocalyptic number.

123804971 is a deficient number, since it is larger than the sum of its proper divisors (1).

123804971 is an equidigital number, since it uses as much as digits as its factorization.

123804971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 123804971 is about 11126.7682190293. The cubic root of 123804971 is about 498.4015231895.

The spelling of 123804971 in words is "one hundred twenty-three million, eight hundred four thousand, nine hundred seventy-one".