2503051321 has 16 divisors (see below), whose sum is σ = 2761413120. Its totient is φ = 2258461440.

The previous prime is 2503051289. The next prime is 2503051339. The reversal of 2503051321 is 1231503052.

It is a cyclic number.

It is not a de Polignac number, because 2503051321 - 2⁵ = 2503051289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2503051292 and 2503051301.

It is not an unprimeable number, because it can be changed into a prime (2503051391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34195 + ... + 78583.

It is an arithmetic number, because the mean of its divisors is an integer number (172588320).

Almost surely, 2^2503051321 is an apocalyptic number.

It is an amenable number.

2503051321 is a deficient number, since it is larger than the sum of its proper divisors (258361799).

2503051321 is a wasteful number, since it uses less digits than its factorization.

2503051321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44544.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 2503051321 is about 50030.5039051177. The cubic root of 2503051321 is about 1357.7607544348.

Adding to 2503051321 its reverse (1231503052), we get a palindrome (3734554373).

The spelling of 2503051321 in words is "two billion, five hundred three million, fifty-one thousand, three hundred twenty-one".