120111032015 has 16 divisors (see below), whose sum is σ = 155517243168. Its totient is φ = 88527758976.

The previous prime is 120111031951. The next prime is 120111032053. The reversal of 120111032015 is 510230111021.

It is a cyclic number.

It is not a de Polignac number, because 120111032015 - 2⁶ = 120111031951 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120111031984 and 120111032002.

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, 1732604 + ... + 1800593.

It is an arithmetic number, because the mean of its divisors is an integer number (9719827698).

Almost surely, 2^120111032015 is an apocalyptic number.

120111032015 is a deficient number, since it is larger than the sum of its proper divisors (35406211153).

120111032015 is a wasteful number, since it uses less digits than its factorization.

120111032015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3533738.

The product of its (nonzero) digits is 60, while the sum is 17.

Adding to 120111032015 its reverse (510230111021), we get a palindrome (630341143036).

The spelling of 120111032015 in words is "one hundred twenty billion, one hundred eleven million, thirty-two thousand, fifteen".