123811396 has 24 divisors (see below), whose sum is σ = 224107520. Its totient is φ = 59851080.

The previous prime is 123811379. The next prime is 123811397. The reversal of 123811396 is 693118321.

It is not an unprimeable number, because it can be changed into a prime (123811397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118645 + ... + 119683.

Almost surely, 2^123811396 is an apocalyptic number.

It is an amenable number.

123811396 is a deficient number, since it is larger than the sum of its proper divisors (100296124).

123811396 is an equidigital number, since it uses as much as digits as its factorization.

123811396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136 (or 1072 counting only the distinct ones).

The product of its digits is 7776, while the sum is 34.

The square root of 123811396 is about 11127.0569334393. The cubic root of 123811396 is about 498.4101447453.

The spelling of 123811396 in words is "one hundred twenty-three million, eight hundred eleven thousand, three hundred ninety-six".