103311312011 has 4 divisors (see below), whose sum is σ = 104054559000. Its totient is φ = 102568065024.

The previous prime is 103311311989. The next prime is 103311312019. The reversal of 103311312011 is 110213113301.

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 103311312011 - 2⁶ = 103311311947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103311312019) 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, 371623286 + ... + 371623563.

It is an arithmetic number, because the mean of its divisors is an integer number (26013639750).

Almost surely, 2^103311312011 is an apocalyptic number.

103311312011 is a deficient number, since it is larger than the sum of its proper divisors (743246989).

103311312011 is an equidigital number, since it uses as much as digits as its factorization.

103311312011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743246988.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 103311312011 its reverse (110213113301), we get a palindrome (213524425312).

The spelling of 103311312011 in words is "one hundred three billion, three hundred eleven million, three hundred twelve thousand, eleven".