11112112201031 has 2 divisors, whose sum is σ = 11112112201032. Its totient is φ = 11112112201030.

The previous prime is 11112112201009. The next prime is 11112112201051. The reversal of 11112112201031 is 13010221121111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11112112201031 - 2¹⁸ = 11112111938887 is a prime.

It is a super-2 number, since 2×11112112201031² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11112112201051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5556056100515 + 5556056100516.

It is an arithmetic number, because the mean of its divisors is an integer number (5556056100516).

Almost surely, 2^{11112112201031} is an apocalyptic number.

11112112201031 is a deficient number, since it is larger than the sum of its proper divisors (1).

11112112201031 is an equidigital number, since it uses as much as digits as its factorization.

11112112201031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 17.

Adding to 11112112201031 its reverse (13010221121111), we get a palindrome (24122333322142).

The spelling of 11112112201031 in words is "eleven trillion, one hundred twelve billion, one hundred twelve million, two hundred one thousand, thirty-one".