1321051 has 8 divisors (see below), whose sum is σ = 1451520. Its totient is φ = 1196712.

The previous prime is 1321031. The next prime is 1321063. The reversal of 1321051 is 1501231.

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 1321051 - 2⁷ = 1320923 is a prime.

It is a Duffinian number.

1321051 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1321031) 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, 1075 + ... + 1948.

It is an arithmetic number, because the mean of its divisors is an integer number (181440).

2^1321051 is an apocalyptic number.

1321051 is a deficient number, since it is larger than the sum of its proper divisors (130469).

1321051 is a wasteful number, since it uses less digits than its factorization.

1321051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3065.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 1321051 is about 1149.3698273402. The cubic root of 1321051 is about 109.7252371215.

Adding to 1321051 its reverse (1501231), we get a palindrome (2822282).

The spelling of 1321051 in words is "one million, three hundred twenty-one thousand, fifty-one".