111123213201311 has 2 divisors, whose sum is σ = 111123213201312. Its totient is φ = 111123213201310.

The previous prime is 111123213201283. The next prime is 111123213201317. The reversal of 111123213201311 is 113102312321111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111123213201311 - 2¹⁴ = 111123213184927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111123213201317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55561606600655 + 55561606600656.

It is an arithmetic number, because the mean of its divisors is an integer number (55561606600656).

Almost surely, 2^{111123213201311} is an apocalyptic number.

111123213201311 is a deficient number, since it is larger than the sum of its proper divisors (1).

111123213201311 is an equidigital number, since it uses as much as digits as its factorization.

111123213201311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 23.

Adding to 111123213201311 its reverse (113102312321111), we get a palindrome (224225525522422).

The spelling of 111123213201311 in words is "one hundred eleven trillion, one hundred twenty-three billion, two hundred thirteen million, two hundred one thousand, three hundred eleven".