123431260 has 24 divisors (see below), whose sum is σ = 266212800. Its totient is φ = 48037824.

The previous prime is 123431251. The next prime is 123431281. The reversal of 123431260 is 62134321.

It is a congruent number.

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, 82660 + ... + 84139.

It is an arithmetic number, because the mean of its divisors is an integer number (11092200).

Almost surely, 2^123431260 is an apocalyptic number.

123431260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123431260 is an abundant number, since it is smaller than the sum of its proper divisors (142781540).

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

123431260 is a wasteful number, since it uses less digits than its factorization.

123431260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166845 (or 166843 counting only the distinct ones).

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

The square root of 123431260 is about 11109.9621961553. The cubic root of 123431260 is about 497.8995351174.

Adding to 123431260 its reverse (62134321), we get a palindrome (185565581).

The spelling of 123431260 in words is "one hundred twenty-three million, four hundred thirty-one thousand, two hundred sixty".