103012012111 has 8 divisors (see below), whose sum is σ = 103087992224. Its totient is φ = 102936065760.

The previous prime is 103012012099. The next prime is 103012012139. The reversal of 103012012111 is 111210210301.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 103012012111 - 2²⁹ = 102475141199 is a prime.

It is a super-2 number, since 2×103012012111² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103012012091 and 103012012100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103012012711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9655366 + ... + 9666028.

It is an arithmetic number, because the mean of its divisors is an integer number (12885999028).

Almost surely, 2^103012012111 is an apocalyptic number.

103012012111 is a deficient number, since it is larger than the sum of its proper divisors (75980113).

103012012111 is a wasteful number, since it uses less digits than its factorization.

103012012111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16881.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 103012012111 its reverse (111210210301), we get a palindrome (214222222412).

The spelling of 103012012111 in words is "one hundred three billion, twelve million, twelve thousand, one hundred eleven".