1121110031 has 2 divisors, whose sum is σ = 1121110032. Its totient is φ = 1121110030.

The previous prime is 1121110021. The next prime is 1121110051. The reversal of 1121110031 is 1300111211.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1121110031 - 2¹⁰ = 1121109007 is a prime.

It is a super-2 number, since 2×1121110031² = 2513775403217641922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1121109994 and 1121110021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121110021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560555015 + 560555016.

It is an arithmetic number, because the mean of its divisors is an integer number (560555016).

Almost surely, 2^1121110031 is an apocalyptic number.

1121110031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121110031 is an equidigital number, since it uses as much as digits as its factorization.

1121110031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6, while the sum is 11.

The square root of 1121110031 is about 33482.9812143423. The cubic root of 1121110031 is about 1038.8417921734.

Adding to 1121110031 its reverse (1300111211), we get a palindrome (2421221242).

The spelling of 1121110031 in words is "one billion, one hundred twenty-one million, one hundred ten thousand, thirty-one".