123431413 has 16 divisors (see below), whose sum is σ = 142796416. Its totient is φ = 104509440.

The previous prime is 123431401. The next prime is 123431431. The reversal of 123431413 is 314134321.

It is not a de Polignac number, because 123431413 - 2⁵ = 123431381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123431813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 284845 + ... + 285277.

It is an arithmetic number, because the mean of its divisors is an integer number (8924776).

Almost surely, 2^123431413 is an apocalyptic number.

It is an amenable number.

123431413 is a deficient number, since it is larger than the sum of its proper divisors (19365003).

123431413 is a wasteful number, since it uses less digits than its factorization.

123431413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844.

The product of its digits is 864, while the sum is 22.

The square root of 123431413 is about 11109.9690818652. The cubic root of 123431413 is about 497.8997408422.

Adding to 123431413 its reverse (314134321), we get a palindrome (437565734).

The spelling of 123431413 in words is "one hundred twenty-three million, four hundred thirty-one thousand, four hundred thirteen".