123031134 has 48 divisors (see below), whose sum is σ = 273015600. Its totient is φ = 40030848.

The previous prime is 123031121. The next prime is 123031151. The reversal of 123031134 is 431130321.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142797 + ... + 143655.

It is an arithmetic number, because the mean of its divisors is an integer number (5687825).

Almost surely, 2^123031134 is an apocalyptic number.

123031134 is an abundant number, since it is smaller than the sum of its proper divisors (149984466).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123031134 is a wasteful number, since it uses less digits than its factorization.

123031134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1049 (or 1046 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 123031134 is about 11091.9400467186. The cubic root of 123031134 is about 497.3609405708.

Adding to 123031134 its reverse (431130321), we get a palindrome (554161455).

The spelling of 123031134 in words is "one hundred twenty-three million, thirty-one thousand, one hundred thirty-four".