111240402011 has 2 divisors, whose sum is σ = 111240402012. Its totient is φ = 111240402010.

The previous prime is 111240401963. The next prime is 111240402041. The reversal of 111240402011 is 110204042111.

It is a strong prime.

It is an emirp because it is prime and its reverse (110204042111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111240402011 - 2⁶ = 111240401947 is a prime.

It is not a weakly prime, because it can be changed into another prime (111240402041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55620201005 + 55620201006.

It is an arithmetic number, because the mean of its divisors is an integer number (55620201006).

Almost surely, 2^111240402011 is an apocalyptic number.

111240402011 is a deficient number, since it is larger than the sum of its proper divisors (1).

111240402011 is an equidigital number, since it uses as much as digits as its factorization.

111240402011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 111240402011 its reverse (110204042111), we get a palindrome (221444444122).

The spelling of 111240402011 in words is "one hundred eleven billion, two hundred forty million, four hundred two thousand, eleven".