1121040461 has 2 divisors, whose sum is σ = 1121040462. Its totient is φ = 1121040460.

The previous prime is 1121040457. The next prime is 1121040463. The reversal of 1121040461 is 1640401211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1037226436 + 83814025 = 32206^2 + 9155^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121040461 - 2² = 1121040457 is a prime.

Together with 1121040463, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121040463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560520230 + 560520231.

It is an arithmetic number, because the mean of its divisors is an integer number (560520231).

Almost surely, 2^1121040461 is an apocalyptic number.

It is an amenable number.

1121040461 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121040461 is an equidigital number, since it uses as much as digits as its factorization.

1121040461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 1121040461 is about 33481.9423122375. The cubic root of 1121040461 is about 1038.8203034356.

Adding to 1121040461 its reverse (1640401211), we get a palindrome (2761441672).

The spelling of 1121040461 in words is "one billion, one hundred twenty-one million, forty thousand, four hundred sixty-one".