10123131 has 4 divisors (see below), whose sum is σ = 13497512. Its totient is φ = 6748752.

The previous prime is 10123111. The next prime is 10123153. The reversal of 10123131 is 13132101.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 10123131 - 2¹⁸ = 9860987 is a prime.

It is a super-2 number, since 2×10123131² = 204955562486322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10123111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1687186 + ... + 1687191.

It is an arithmetic number, because the mean of its divisors is an integer number (3374378).

Almost surely, 2^10123131 is an apocalyptic number.

10123131 is a deficient number, since it is larger than the sum of its proper divisors (3374381).

10123131 is an equidigital number, since it uses as much as digits as its factorization.

10123131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3374380.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 10123131 is about 3181.6868167687. The cubic root of 10123131 is about 216.3241232976.

Adding to 10123131 its reverse (13132101), we get a palindrome (23255232).

It can be divided in two parts, 101 and 23131, that added together give a palindrome (23232).

The spelling of 10123131 in words is "ten million, one hundred twenty-three thousand, one hundred thirty-one".