103212013111 has 4 divisors (see below), whose sum is σ = 104125393872. Its totient is φ = 102298632352.

The previous prime is 103212013109. The next prime is 103212013133. The reversal of 103212013111 is 111310212301.

It is a happy number.

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 103212013111 - 2¹ = 103212013109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103212013171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 456690211 + ... + 456690436.

It is an arithmetic number, because the mean of its divisors is an integer number (26031348468).

Almost surely, 2^103212013111 is an apocalyptic number.

103212013111 is a deficient number, since it is larger than the sum of its proper divisors (913380761).

103212013111 is an equidigital number, since it uses as much as digits as its factorization.

103212013111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913380760.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 103212013111 its reverse (111310212301), we get a palindrome (214522225412).

The spelling of 103212013111 in words is "one hundred three billion, two hundred twelve million, thirteen thousand, one hundred eleven".