111331202113 has 2 divisors, whose sum is σ = 111331202114. Its totient is φ = 111331202112.

The previous prime is 111331202077. The next prime is 111331202149. The reversal of 111331202113 is 311202133111.

It is a balanced prime because it is at equal distance from previous prime (111331202077) and next prime (111331202149).

It can be written as a sum of positive squares in only one way, i.e., 107756597169 + 3574604944 = 328263^2 + 59788^2 .

It is a cyclic number.

It is not a de Polignac number, because 111331202113 - 2¹⁷ = 111331071041 is a prime.

It is not a weakly prime, because it can be changed into another prime (111331202713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55665601056 + 55665601057.

It is an arithmetic number, because the mean of its divisors is an integer number (55665601057).

Almost surely, 2^111331202113 is an apocalyptic number.

It is an amenable number.

111331202113 is a deficient number, since it is larger than the sum of its proper divisors (1).

111331202113 is an equidigital number, since it uses as much as digits as its factorization.

111331202113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 111331202113 its reverse (311202133111), we get a palindrome (422533335224).

The spelling of 111331202113 in words is "one hundred eleven billion, three hundred thirty-one million, two hundred two thousand, one hundred thirteen".