123123632 has 10 divisors (see below), whose sum is σ = 238552068. Its totient is φ = 61561808.

The previous prime is 123123631. The next prime is 123123641. The reversal of 123123632 is 236321321.

It is a junction number, because it is equal to n+sod(n) for n = 123123598 and 123123607.

It is not an unprimeable number, because it can be changed into a prime (123123631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3847598 + ... + 3847629.

Almost surely, 2^123123632 is an apocalyptic number.

It is an amenable number.

123123632 is a deficient number, since it is larger than the sum of its proper divisors (115428436).

123123632 is an equidigital number, since it uses as much as digits as its factorization.

123123632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7695235 (or 7695229 counting only the distinct ones).

The product of its digits is 1296, while the sum is 23.

The square root of 123123632 is about 11096.1088675265. The cubic root of 123123632 is about 497.4855523022.

Adding to 123123632 its reverse (236321321), we get a palindrome (359444953).

The spelling of 123123632 in words is "one hundred twenty-three million, one hundred twenty-three thousand, six hundred thirty-two".