10200023421 has 32 divisors (see below), whose sum is σ = 15918397440. Its totient is φ = 5688010944.

The previous prime is 10200023411. The next prime is 10200023447. The reversal of 10200023421 is 12432000201.

It is not a de Polignac number, because 10200023421 - 2⁵ = 10200023389 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10200023421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10200023411) 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 31 ways as a sum of consecutive naturals, for example, 1172275 + ... + 1180943.

It is an arithmetic number, because the mean of its divisors is an integer number (497449920).

Almost surely, 2^10200023421 is an apocalyptic number.

It is an amenable number.

10200023421 is a deficient number, since it is larger than the sum of its proper divisors (5718374019).

10200023421 is a wasteful number, since it uses less digits than its factorization.

10200023421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10025.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 10200023421 its reverse (12432000201), we get a palindrome (22632023622).

The spelling of 10200023421 in words is "ten billion, two hundred million, twenty-three thousand, four hundred twenty-one".