123353869 has 2 divisors, whose sum is σ = 123353870. Its totient is φ = 123353868.

The previous prime is 123353861. The next prime is 123353873. The reversal of 123353869 is 968353321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108951844 + 14402025 = 10438^2 + 3795^2 .

It is a cyclic number.

It is not a de Polignac number, because 123353869 - 2³ = 123353861 is a prime.

It is a super-2 number, since 2×123353869² = 30432353994538322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123353861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61676934 + 61676935.

It is an arithmetic number, because the mean of its divisors is an integer number (61676935).

Almost surely, 2^123353869 is an apocalyptic number.

It is an amenable number.

123353869 is a deficient number, since it is larger than the sum of its proper divisors (1).

123353869 is an equidigital number, since it uses as much as digits as its factorization.

123353869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640, while the sum is 40.

The square root of 123353869 is about 11106.4786948880. The cubic root of 123353869 is about 497.7954528963.

The spelling of 123353869 in words is "one hundred twenty-three million, three hundred fifty-three thousand, eight hundred sixty-nine".