123011132 has 48 divisors (see below), whose sum is σ = 227828832. Its totient is φ = 58060800.

The previous prime is 123011117. The next prime is 123011143. The reversal of 123011132 is 231110321.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1217882 + ... + 1217982.

It is an arithmetic number, because the mean of its divisors is an integer number (4746434).

Almost surely, 2^123011132 is an apocalyptic number.

It is an amenable number.

123011132 is a deficient number, since it is larger than the sum of its proper divisors (104817700).

123011132 is a wasteful number, since it uses less digits than its factorization.

123011132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318 (or 316 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 123011132 is about 11091.0383643733. The cubic root of 123011132 is about 497.3339860041. Note that the first 3 decimals are identical.

Adding to 123011132 its reverse (231110321), we get a palindrome (354121453).

The spelling of 123011132 in words is "one hundred twenty-three million, eleven thousand, one hundred thirty-two".