103123012111 has 4 divisors (see below), whose sum is σ = 117854870992. Its totient is φ = 88391153232.

The previous prime is 103123012103. The next prime is 103123012123. The reversal of 103123012111 is 111210321301.

It is a happy number.

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 103123012111 - 2³ = 103123012103 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 (103123012171) 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, 7365929430 + ... + 7365929443.

It is an arithmetic number, because the mean of its divisors is an integer number (29463717748).

Almost surely, 2^103123012111 is an apocalyptic number.

103123012111 is a deficient number, since it is larger than the sum of its proper divisors (14731858881).

103123012111 is an equidigital number, since it uses as much as digits as its factorization.

103123012111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14731858880.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 103123012111 its reverse (111210321301), we get a palindrome (214333333412).

The spelling of 103123012111 in words is "one hundred three billion, one hundred twenty-three million, twelve thousand, one hundred eleven".