103012111 has 4 divisors (see below), whose sum is σ = 103054432. Its totient is φ = 102969792.

The previous prime is 103012097. The next prime is 103012121. The reversal of 103012111 is 111210301.

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 103012111 - 2¹⁵ = 102979343 is a prime.

It is a super-2 number, since 2×103012111² = 21222990025352642, which contains 22 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 (103012121) 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, 17271 + ... + 22456.

It is an arithmetic number, because the mean of its divisors is an integer number (25763608).

Almost surely, 2^103012111 is an apocalyptic number.

103012111 is a deficient number, since it is larger than the sum of its proper divisors (42321).

103012111 is an equidigital number, since it uses as much as digits as its factorization.

103012111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42320.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 103012111 is about 10149.4882136983. The cubic root of 103012111 is about 468.7731865034.

Adding to 103012111 its reverse (111210301), we get a palindrome (214222412).

The spelling of 103012111 in words is "one hundred three million, twelve thousand, one hundred eleven".