123373811 has 18 divisors (see below), whose sum is σ = 143701788. Its totient is φ = 105024640.

The previous prime is 123373807. The next prime is 123373813. The reversal of 123373811 is 118373321.

It is not a de Polignac number, because 123373811 - 2² = 123373807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123373813) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 626165 + ... + 626361.

Almost surely, 2^123373811 is an apocalyptic number.

123373811 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

123373811 is a deficient number, since it is larger than the sum of its proper divisors (20327977).

123373811 is an equidigital number, since it uses as much as digits as its factorization.

123373811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439 (or 225 counting only the distinct ones).

The product of its digits is 3024, while the sum is 29.

The square root of 123373811 is about 11107.3764229002. The cubic root of 123373811 is about 497.8222768139.

The spelling of 123373811 in words is "one hundred twenty-three million, three hundred seventy-three thousand, eight hundred eleven".