111223410243031 has 2 divisors, whose sum is σ = 111223410243032. Its totient is φ = 111223410243030.

The previous prime is 111223410242999. The next prime is 111223410243037. The reversal of 111223410243031 is 130342014322111.

It is a strong prime.

It is an emirp because it is prime and its reverse (130342014322111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111223410243031 - 2⁵ = 111223410242999 is a prime.

It is a super-2 number, since 2×111223410243031² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111223410243037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55611705121515 + 55611705121516.

It is an arithmetic number, because the mean of its divisors is an integer number (55611705121516).

Almost surely, 2^{111223410243031} is an apocalyptic number.

111223410243031 is a deficient number, since it is larger than the sum of its proper divisors (1).

111223410243031 is an equidigital number, since it uses as much as digits as its factorization.

111223410243031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 111223410243031 its reverse (130342014322111), we get a palindrome (241565424565142).

The spelling of 111223410243031 in words is "one hundred eleven trillion, two hundred twenty-three billion, four hundred ten million, two hundred forty-three thousand, thirty-one".