123112072 has 16 divisors (see below), whose sum is σ = 231042240. Its totient is φ = 61500816.

The previous prime is 123112063. The next prime is 123112081. The reversal of 123112072 is 270211321.

It is an interprime number because it is at equal distance from previous prime (123112063) and next prime (123112081).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3493 + ... + 16075.

It is an arithmetic number, because the mean of its divisors is an integer number (14440140).

Almost surely, 2^123112072 is an apocalyptic number.

It is an amenable number.

123112072 is a deficient number, since it is larger than the sum of its proper divisors (107930168).

123112072 is a wasteful number, since it uses less digits than its factorization.

123112072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13812 (or 13808 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 123112072 is about 11095.5879519744. The cubic root of 123112072 is about 497.4699822802.

Adding to 123112072 its reverse (270211321), we get a palindrome (393323393).

The spelling of 123112072 in words is "one hundred twenty-three million, one hundred twelve thousand, seventy-two".