1121131013 has 2 divisors, whose sum is σ = 1121131014. Its totient is φ = 1121131012.

The previous prime is 1121131009. The next prime is 1121131057. The reversal of 1121131013 is 3101311211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1074659524 + 46471489 = 32782^2 + 6817^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121131013 - 2² = 1121131009 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121131003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560565506 + 560565507.

It is an arithmetic number, because the mean of its divisors is an integer number (560565507).

Almost surely, 2^1121131013 is an apocalyptic number.

It is an amenable number.

1121131013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121131013 is an equidigital number, since it uses as much as digits as its factorization.

1121131013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 1121131013 is about 33483.2945362310. The cubic root of 1121131013 is about 1038.8482729058.

Adding to 1121131013 its reverse (3101311211), we get a palindrome (4222442224).

It can be divided in two parts, 11211 and 31013, that multiplied together give a palindrome (347686743).

The spelling of 1121131013 in words is "one billion, one hundred twenty-one million, one hundred thirty-one thousand, thirteen".