123431034 has 16 divisors (see below), whose sum is σ = 247085280. Its totient is φ = 41106480.

The previous prime is 123431029. The next prime is 123431053. The reversal of 123431034 is 430134321.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 123431034.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1624 + ... + 15795.

It is an arithmetic number, because the mean of its divisors is an integer number (15442830).

Almost surely, 2^123431034 is an apocalyptic number.

123431034 is an abundant number, since it is smaller than the sum of its proper divisors (123654246).

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

123431034 is a wasteful number, since it uses less digits than its factorization.

123431034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18605.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 123431034 is about 11109.9520250989. The cubic root of 123431034 is about 497.8992312361.

Adding to 123431034 its reverse (430134321), we get a palindrome (553565355).

The spelling of 123431034 in words is "one hundred twenty-three million, four hundred thirty-one thousand, thirty-four".