1121015453 has 2 divisors, whose sum is σ = 1121015454. Its totient is φ = 1121015452.

The previous prime is 1121015449. The next prime is 1121015473. The reversal of 1121015453 is 3545101211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1077283684 + 43731769 = 32822^2 + 6613^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121015453 - 2² = 1121015449 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121015443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560507726 + 560507727.

It is an arithmetic number, because the mean of its divisors is an integer number (560507727).

Almost surely, 2^1121015453 is an apocalyptic number.

It is an amenable number.

1121015453 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121015453 is an equidigital number, since it uses as much as digits as its factorization.

1121015453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 1121015453 is about 33481.5688551179. The cubic root of 1121015453 is about 1038.8125787630.

Adding to 1121015453 its reverse (3545101211), we get a palindrome (4666116664).

The spelling of 1121015453 in words is "one billion, one hundred twenty-one million, fifteen thousand, four hundred fifty-three".