10320200421 has 16 divisors (see below), whose sum is σ = 15039687168. Its totient is φ = 6266534400.

The previous prime is 10320200389. The next prime is 10320200437. The reversal of 10320200421 is 12400202301.

It is not a de Polignac number, because 10320200421 - 2⁵ = 10320200389 is a prime.

It is a super-3 number, since 3×10320200421³ (a number of 31 digits) contains 333 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 10320200421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10320200461) 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, 3262240 + ... + 3265401.

It is an arithmetic number, because the mean of its divisors is an integer number (939980448).

Almost surely, 2^10320200421 is an apocalyptic number.

It is an amenable number.

10320200421 is a deficient number, since it is larger than the sum of its proper divisors (4719486747).

10320200421 is a wasteful number, since it uses less digits than its factorization.

10320200421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6527692.

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

Adding to 10320200421 its reverse (12400202301), we get a palindrome (22720402722).

The spelling of 10320200421 in words is "ten billion, three hundred twenty million, two hundred thousand, four hundred twenty-one".