120103312111 has 4 divisors (see below), whose sum is σ = 120111092712. Its totient is φ = 120095531512.

The previous prime is 120103312081. The next prime is 120103312129. The reversal of 120103312111 is 111213301021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111213301021 = 73 ⋅1523469877.

It is a cyclic number.

It is not a de Polignac number, because 120103312111 - 2⁵ = 120103312079 is a prime.

It is a super-3 number, since 3×120103312111³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120103312171) 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, 3867100 + ... + 3898033.

It is an arithmetic number, because the mean of its divisors is an integer number (30027773178).

Almost surely, 2^120103312111 is an apocalyptic number.

120103312111 is a deficient number, since it is larger than the sum of its proper divisors (7780601).

120103312111 is an equidigital number, since it uses as much as digits as its factorization.

120103312111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7780600.

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

Adding to 120103312111 its reverse (111213301021), we get a palindrome (231316613132).

The spelling of 120103312111 in words is "one hundred twenty billion, one hundred three million, three hundred twelve thousand, one hundred eleven".