1031013321 has 16 divisors (see below), whose sum is σ = 1558347840. Its totient is φ = 601076160.

The previous prime is 1031013317. The next prime is 1031013323. The reversal of 1031013321 is 1233101301.

1031013321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1031013321 - 2² = 1031013317 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1031013321.

It is not an unprimeable number, because it can be changed into a prime (1031013323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 694950 + ... + 696431.

It is an arithmetic number, because the mean of its divisors is an integer number (97396740).

Almost surely, 2^1031013321 is an apocalyptic number.

It is an amenable number.

1031013321 is a deficient number, since it is larger than the sum of its proper divisors (527334519).

1031013321 is a wasteful number, since it uses less digits than its factorization.

1031013321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391416.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 1031013321 is about 32109.3961481682. The cubic root of 1031013321 is about 1010.2327081997.

Adding to 1031013321 its reverse (1233101301), we get a palindrome (2264114622).

The spelling of 1031013321 in words is "one billion, thirty-one million, thirteen thousand, three hundred twenty-one".