120003111 has 6 divisors (see below), whose sum is σ = 173337840. Its totient is φ = 80002068.

The previous prime is 120003101. The next prime is 120003113. The reversal of 120003111 is 111300021.

It is not a de Polignac number, because 120003111 - 2¹⁹ = 119478823 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 13333679 = 120003111 / (1 + 2 + 0 + 0 + 0 + 3 + 1 + 1 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 120003093 and 120003102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120003113) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6666831 + ... + 6666848.

It is an arithmetic number, because the mean of its divisors is an integer number (28889640).

Almost surely, 2^120003111 is an apocalyptic number.

120003111 is a deficient number, since it is larger than the sum of its proper divisors (53334729).

120003111 is a wasteful number, since it uses less digits than its factorization.

120003111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13333685 (or 13333682 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 120003111 is about 10954.5931462560. The cubic root of 120003111 is about 493.2466772658.

Adding to 120003111 its reverse (111300021), we get a palindrome (231303132).

The spelling of 120003111 in words is "one hundred twenty million, three thousand, one hundred eleven".