1121201230031 has 2 divisors, whose sum is σ = 1121201230032. Its totient is φ = 1121201230030.

The previous prime is 1121201229997. The next prime is 1121201230067. The reversal of 1121201230031 is 1300321021211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1121201230031 - 2²² = 1121197035727 is a prime.

It is a super-2 number, since 2×1121201230031² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1121201229991 and 1121201230009.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121251230031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560600615015 + 560600615016.

It is an arithmetic number, because the mean of its divisors is an integer number (560600615016).

Almost surely, 2^{1121201230031} is an apocalyptic number.

1121201230031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121201230031 is an equidigital number, since it uses as much as digits as its factorization.

1121201230031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1121201230031 its reverse (1300321021211), we get a palindrome (2421522251242).

The spelling of 1121201230031 in words is "one trillion, one hundred twenty-one billion, two hundred one million, two hundred thirty thousand, thirty-one".