1051254321 has 32 divisors (see below), whose sum is σ = 1584965760. Its totient is φ = 615250944.

The previous prime is 1051254289. The next prime is 1051254377. The reversal of 1051254321 is 1234521501.

It is a happy number.

It is not a de Polignac number, because 1051254321 - 2⁵ = 1051254289 is a prime.

It is a super-2 number, since 2×1051254321² = 2210271294842342082, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1051254291 and 1051254300.

It is not an unprimeable number, because it can be changed into a prime (1051254221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68841 + ... + 82713.

It is an arithmetic number, because the mean of its divisors is an integer number (49530180).

Almost surely, 2^1051254321 is an apocalyptic number.

It is an amenable number.

1051254321 is a deficient number, since it is larger than the sum of its proper divisors (533711439).

1051254321 is a wasteful number, since it uses less digits than its factorization.

1051254321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13985.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1051254321 is about 32423.0523085042. The cubic root of 1051254321 is about 1016.8009218862.

Adding to 1051254321 its reverse (1234521501), we get a palindrome (2285775822).

The spelling of 1051254321 in words is "one billion, fifty-one million, two hundred fifty-four thousand, three hundred twenty-one".