10021304381 has 16 divisors (see below), whose sum is σ = 11714891328. Its totient is φ = 8471059200.

The previous prime is 10021304341. The next prime is 10021304383. The reversal of 10021304381 is 18340312001.

10021304381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-10021304381 is a prime.

It is a super-2 number, since 2×10021304381² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021304383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 307310 + ... + 338351.

It is an arithmetic number, because the mean of its divisors is an integer number (732180708).

Almost surely, 2^10021304381 is an apocalyptic number.

10021304381 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10021304381 is a deficient number, since it is larger than the sum of its proper divisors (1693586947).

10021304381 is a wasteful number, since it uses less digits than its factorization.

10021304381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645772.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 10021304381 its reverse (18340312001), we get a palindrome (28361616382).

The spelling of 10021304381 in words is "ten billion, twenty-one million, three hundred four thousand, three hundred eighty-one".