1121002112231 has 2 divisors, whose sum is σ = 1121002112232. Its totient is φ = 1121002112230.

The previous prime is 1121002112213. The next prime is 1121002112309. The reversal of 1121002112231 is 1322112001211.

It is a happy number.

Together with previous prime (1121002112213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121002112231 is a prime.

It is a super-2 number, since 2×1121002112231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121002115231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560501056115 + 560501056116.

It is an arithmetic number, because the mean of its divisors is an integer number (560501056116).

Almost surely, 2^{1121002112231} is an apocalyptic number.

1121002112231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121002112231 is an equidigital number, since it uses as much as digits as its factorization.

1121002112231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1121002112231 its reverse (1322112001211), we get a palindrome (2443114113442).

The spelling of 1121002112231 in words is "one trillion, one hundred twenty-one billion, two million, one hundred twelve thousand, two hundred thirty-one".