1012253321 has 4 divisors (see below), whose sum is σ = 1071797652. Its totient is φ = 952708992.

The previous prime is 1012253317. The next prime is 1012253351. The reversal of 1012253321 is 1233522101.

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 773118025 + 239135296 = 27805^2 + 15464^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012253321 - 2² = 1012253317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1012253293 and 1012253302.

It is not an unprimeable number, because it can be changed into a prime (1012253351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29772140 + ... + 29772173.

It is an arithmetic number, because the mean of its divisors is an integer number (267949413).

Almost surely, 2^1012253321 is an apocalyptic number.

It is an amenable number.

1012253321 is a deficient number, since it is larger than the sum of its proper divisors (59544331).

1012253321 is an equidigital number, since it uses as much as digits as its factorization.

1012253321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59544330.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1012253321 is about 31815.9287307474. The cubic root of 1012253321 is about 1004.0678703266.

Adding to 1012253321 its reverse (1233522101), we get a palindrome (2245775422).

The spelling of 1012253321 in words is "one billion, twelve million, two hundred fifty-three thousand, three hundred twenty-one".