1013403321 has 24 divisors (see below), whose sum is σ = 1681347200. Its totient is φ = 576170496.

The previous prime is 1013403277. The next prime is 1013403353. The reversal of 1013403321 is 1233043101.

1013403321 is a `hidden beast` number, since 1 + 0 + 1 + 340 + 3 + 321 = 666.

It is not a de Polignac number, because 1013403321 - 2¹⁴ = 1013386937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1013403294 and 1013403303.

It is not an unprimeable number, because it can be changed into a prime (1013403121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27880 + ... + 52953.

Almost surely, 2^1013403321 is an apocalyptic number.

It is an amenable number.

1013403321 is a deficient number, since it is larger than the sum of its proper divisors (667943879).

1013403321 is a wasteful number, since it uses less digits than its factorization.

1013403321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81045 (or 81042 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1013403321 is about 31833.9963089776. The cubic root of 1013403321 is about 1004.4479599853.

Adding to 1013403321 its reverse (1233043101), we get a palindrome (2246446422).

The spelling of 1013403321 in words is "one billion, thirteen million, four hundred three thousand, three hundred twenty-one".