123923236 has 12 divisors (see below), whose sum is σ = 216946828. Its totient is φ = 61938432.

The previous prime is 123923231. The next prime is 123923321. The reversal of 123923236 is 632329321.

It can be written as a sum of positive squares in 2 ways, for example, as 108368100 + 15555136 = 10410^2 + 3944^2 .

It is a junction number, because it is equal to n+sod(n) for n = 123923198 and 123923207.

It is not an unprimeable number, because it can be changed into a prime (123923231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13000 + ... + 20416.

Almost surely, 2^123923236 is an apocalyptic number.

It is an amenable number.

123923236 is a deficient number, since it is larger than the sum of its proper divisors (93023592).

123923236 is a wasteful number, since it uses less digits than its factorization.

123923236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11598 (or 11596 counting only the distinct ones).

The product of its digits is 11664, while the sum is 31.

The square root of 123923236 is about 11132.0813866949. The cubic root of 123923236 is about 498.5601724397.

The spelling of 123923236 in words is "one hundred twenty-three million, nine hundred twenty-three thousand, two hundred thirty-six".