10123031111 has 4 divisors (see below), whose sum is σ = 10314031752. Its totient is φ = 9932030472.

The previous prime is 10123031099. The next prime is 10123031153. The reversal of 10123031111 is 11113032101.

It is a happy number.

10123031111 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 not a de Polignac number, because 10123031111 - 2¹⁸ = 10122768967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10123031011) 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, 95500241 + ... + 95500346.

It is an arithmetic number, because the mean of its divisors is an integer number (2578507938).

Almost surely, 2^10123031111 is an apocalyptic number.

10123031111 is a deficient number, since it is larger than the sum of its proper divisors (191000641).

10123031111 is an equidigital number, since it uses as much as digits as its factorization.

10123031111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191000640.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 10123031111 its reverse (11113032101), we get a palindrome (21236063212).

The spelling of 10123031111 in words is "ten billion, one hundred twenty-three million, thirty-one thousand, one hundred eleven".