10123012243 has 4 divisors (see below), whose sum is σ = 10314012528. Its totient is φ = 9932011960.

The previous prime is 10123012231. The next prime is 10123012267. The reversal of 10123012243 is 34221032101.

It is a happy number.

10123012243 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10123012243 is a prime.

It is a Duffinian number.

10123012243 is a modest number, since divided by 12243 gives 10123 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 10123012243.

It is not an unprimeable number, because it can be changed into a prime (10123012043) 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, 95500063 + ... + 95500168.

It is an arithmetic number, because the mean of its divisors is an integer number (2578503132).

Almost surely, 2^10123012243 is an apocalyptic number.

10123012243 is a deficient number, since it is larger than the sum of its proper divisors (191000285).

10123012243 is an equidigital number, since it uses as much as digits as its factorization.

10123012243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191000284.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 10123012243 its reverse (34221032101), we get a palindrome (44344044344).

The spelling of 10123012243 in words is "ten billion, one hundred twenty-three million, twelve thousand, two hundred forty-three".