1321044051 has 8 divisors (see below), whose sum is σ = 1770614784. Its totient is φ = 876084680.

The previous prime is 1321044037. The next prime is 1321044071. The reversal of 1321044051 is 1504401231.

1321044051 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1321044051 - 2⁷ = 1321043923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1321044071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1152171 + ... + 1153316.

It is an arithmetic number, because the mean of its divisors is an integer number (221326848).

Almost surely, 2^1321044051 is an apocalyptic number.

1321044051 is a deficient number, since it is larger than the sum of its proper divisors (449570733).

1321044051 is a wasteful number, since it uses less digits than its factorization.

1321044051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2305681.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1321044051 is about 36346.1696881528. The cubic root of 1321044051 is about 1097.2504472877.

Adding to 1321044051 its reverse (1504401231), we get a palindrome (2825445282).

The spelling of 1321044051 in words is "one billion, three hundred twenty-one million, forty-four thousand, fifty-one".