10021420143 has 16 divisors (see below), whose sum is σ = 16967484160. Its totient is φ = 5726525688.

The previous prime is 10021420111. The next prime is 10021420153. The reversal of 10021420143 is 34102412001.

10021420143 is a `hidden beast` number, since 100 + 2 + 1 + 420 + 143 = 666.

It is not a de Polignac number, because 10021420143 - 2⁵ = 10021420111 is a prime.

It is a super-2 number, since 2×10021420143² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021420103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26511505 + ... + 26511882.

It is an arithmetic number, because the mean of its divisors is an integer number (1060467760).

Almost surely, 2^10021420143 is an apocalyptic number.

10021420143 is a deficient number, since it is larger than the sum of its proper divisors (6946064017).

10021420143 is an equidigital number, since it uses as much as digits as its factorization.

10021420143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53023403 (or 53023397 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 10021420143 its reverse (34102412001), we get a palindrome (44123832144).

The spelling of 10021420143 in words is "ten billion, twenty-one million, four hundred twenty thousand, one hundred forty-three".