10123431 has 4 divisors (see below), whose sum is σ = 13497912. Its totient is φ = 6748952.

The previous prime is 10123423. The next prime is 10123439. The reversal of 10123431 is 13432101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13432101 = 3 ⋅4477367.

It is an interprime number because it is at equal distance from previous prime (10123423) and next prime (10123439).

It is a cyclic number.

It is not a de Polignac number, because 10123431 - 2³ = 10123423 is a prime.

It is a super-2 number, since 2×10123431² = 204967710423522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10123431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10123439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1687236 + ... + 1687241.

It is an arithmetic number, because the mean of its divisors is an integer number (3374478).

Almost surely, 2^10123431 is an apocalyptic number.

10123431 is a deficient number, since it is larger than the sum of its proper divisors (3374481).

10123431 is an equidigital number, since it uses as much as digits as its factorization.

10123431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3374480.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 10123431 is about 3181.7339612230. The cubic root of 10123431 is about 216.3262602055.

Adding to 10123431 its reverse (13432101), we get a palindrome (23555532).

It can be divided in two parts, 101 and 23431, that added together give a palindrome (23532).

The spelling of 10123431 in words is "ten million, one hundred twenty-three thousand, four hundred thirty-one".