120103111015 has 16 divisors (see below), whose sum is σ = 147562192800. Its totient is φ = 93792811392.

The previous prime is 120103110917. The next prime is 120103111021. The reversal of 120103111015 is 510111301021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 120103111015 - 2⁷ = 120103110887 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120103111015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204001 + ... + 530869.

It is an arithmetic number, because the mean of its divisors is an integer number (9222637050).

Almost surely, 2^120103111015 is an apocalyptic number.

120103111015 is a deficient number, since it is larger than the sum of its proper divisors (27459081785).

120103111015 is a wasteful number, since it uses less digits than its factorization.

120103111015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328626.

The product of its (nonzero) digits is 30, while the sum is 16.

Adding to 120103111015 its reverse (510111301021), we get a palindrome (630214412036).

The spelling of 120103111015 in words is "one hundred twenty billion, one hundred three million, one hundred eleven thousand, fifteen".