123431346 has 12 divisors (see below), whose sum is σ = 267434622. Its totient is φ = 41143776.

The previous prime is 123431333. The next prime is 123431351. The reversal of 123431346 is 643134321.

It can be written as a sum of positive squares in only one way, i.e., 120758121 + 2673225 = 10989^2 + 1635^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3428631 + ... + 3428666.

Almost surely, 2^123431346 is an apocalyptic number.

123431346 is an abundant number, since it is smaller than the sum of its proper divisors (144003276).

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

123431346 is a wasteful number, since it uses less digits than its factorization.

123431346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6857305 (or 6857302 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

The square root of 123431346 is about 11109.9660665548. The cubic root of 123431346 is about 497.8996507536.

Adding to 123431346 its reverse (643134321), we get a palindrome (766565667).

It can be divided in two parts, 12343 and 1346, that added together give a square (13689 = 117²).

The spelling of 123431346 in words is "one hundred twenty-three million, four hundred thirty-one thousand, three hundred forty-six".