1123015451 has 2 divisors, whose sum is σ = 1123015452. Its totient is φ = 1123015450.

The previous prime is 1123015433. The next prime is 1123015471. The reversal of 1123015451 is 1545103211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1123015451 - 2²⁶ = 1055906587 is a prime.

It is a super-2 number, since 2×1123015451² = 2522327406369466802, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1123015471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561507725 + 561507726.

It is an arithmetic number, because the mean of its divisors is an integer number (561507726).

Almost surely, 2^1123015451 is an apocalyptic number.

1123015451 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123015451 is an equidigital number, since it uses as much as digits as its factorization.

1123015451 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 1123015451 is about 33511.4226943590. The cubic root of 1123015451 is about 1039.4299918233.

Adding to 1123015451 its reverse (1545103211), we get a palindrome (2668118662).

The spelling of 1123015451 in words is "one billion, one hundred twenty-three million, fifteen thousand, four hundred fifty-one".