1011002321 has 16 divisors (see below), whose sum is σ = 1196361600. Its totient is φ = 835930368.

The previous prime is 1011002309. The next prime is 1011002341. The reversal of 1011002321 is 1232001101.

1011002321 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 1011002321 - 2¹⁰ = 1011001297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1011002341) 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, 378890 + ... + 381548.

It is an arithmetic number, because the mean of its divisors is an integer number (74772600).

Almost surely, 2^1011002321 is an apocalyptic number.

It is an amenable number.

1011002321 is a deficient number, since it is larger than the sum of its proper divisors (185359279).

1011002321 is a wasteful number, since it uses less digits than its factorization.

1011002321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4568.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1011002321 is about 31796.2626891904. The cubic root of 1011002321 is about 1003.6540718291.

Adding to 1011002321 its reverse (1232001101), we get a palindrome (2243003422).

The spelling of 1011002321 in words is "one billion, eleven million, two thousand, three hundred twenty-one".