1023451361 has 4 divisors (see below), whose sum is σ = 1024539924. Its totient is φ = 1022362800.

The previous prime is 1023451333. The next prime is 1023451379. The reversal of 1023451361 is 1631543201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 854451361 + 169000000 = 29231^2 + 13000^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1023451361 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1023451361.

It is not an unprimeable number, because it can be changed into a prime (1023451661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 542870 + ... + 544751.

It is an arithmetic number, because the mean of its divisors is an integer number (256134981).

Almost surely, 2^1023451361 is an apocalyptic number.

It is an amenable number.

1023451361 is a deficient number, since it is larger than the sum of its proper divisors (1088563).

1023451361 is an equidigital number, since it uses as much as digits as its factorization.

1023451361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1088562.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 1023451361 is about 31991.4263670753. The cubic root of 1023451361 is about 1007.7567968657.

Adding to 1023451361 its reverse (1631543201), we get a palindrome (2654994562).

The spelling of 1023451361 in words is "one billion, twenty-three million, four hundred fifty-one thousand, three hundred sixty-one".