1121400517 has 2 divisors, whose sum is σ = 1121400518. Its totient is φ = 1121400516.

The previous prime is 1121400503. The next prime is 1121400583. The reversal of 1121400517 is 7150041211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1083133921 + 38266596 = 32911^2 + 6186^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121400517 - 2¹¹ = 1121398469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121400017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560700258 + 560700259.

It is an arithmetic number, because the mean of its divisors is an integer number (560700259).

Almost surely, 2^1121400517 is an apocalyptic number.

It is an amenable number.

1121400517 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121400517 is an equidigital number, since it uses as much as digits as its factorization.

1121400517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 280, while the sum is 22.

The square root of 1121400517 is about 33487.3187490429. The cubic root of 1121400517 is about 1038.9315077020.

Adding to 1121400517 its reverse (7150041211), we get a palindrome (8271441728).

The spelling of 1121400517 in words is "one billion, one hundred twenty-one million, four hundred thousand, five hundred seventeen".