10123443331 has 4 divisors (see below), whose sum is σ = 10124631664. Its totient is φ = 10122255000.

The previous prime is 10123443329. The next prime is 10123443389. The reversal of 10123443331 is 13334432101.

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

It is a 4-Lehmer number, since φ(10123443331) divides (10123443331-1)⁴.

It is a cyclic number.

It is not a de Polignac number, because 10123443331 - 2¹ = 10123443329 is a prime.

It is a super-2 number, since 2×10123443331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10123443296 and 10123443305.

It is not an unprimeable number, because it can be changed into a prime (10123443301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 581295 + ... + 598456.

It is an arithmetic number, because the mean of its divisors is an integer number (2531157916).

Almost surely, 2^10123443331 is an apocalyptic number.

10123443331 is a deficient number, since it is larger than the sum of its proper divisors (1188333).

10123443331 is an equidigital number, since it uses as much as digits as its factorization.

10123443331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1188332.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 10123443331 its reverse (13334432101), we get a palindrome (23457875432).

The spelling of 10123443331 in words is "ten billion, one hundred twenty-three million, four hundred forty-three thousand, three hundred thirty-one".