103123431 has 24 divisors (see below), whose sum is σ = 157248000. Its totient is φ = 64942992.

The previous prime is 103123399. The next prime is 103123549. The reversal of 103123431 is 134321301.

103123431 is a `hidden beast` number, since 10 + 312 + 343 + 1 = 666.

It is not a de Polignac number, because 103123431 - 2⁵ = 103123399 is a prime.

It is a super-2 number, since 2×103123431² = 21268884042423522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103123831) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81280 + ... + 82538.

It is an arithmetic number, because the mean of its divisors is an integer number (6552000).

Almost surely, 2^103123431 is an apocalyptic number.

103123431 is a deficient number, since it is larger than the sum of its proper divisors (54124569).

103123431 is a wasteful number, since it uses less digits than its factorization.

103123431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1763 (or 1760 counting only the distinct ones).

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

The square root of 103123431 is about 10154.9707532814. The cubic root of 103123431 is about 468.9419855712.

Adding to 103123431 its reverse (134321301), we get a palindrome (237444732).

The spelling of 103123431 in words is "one hundred three million, one hundred twenty-three thousand, four hundred thirty-one".