10210440323421 has 32 divisors (see below), whose sum is σ = 16815650288640. Its totient is φ = 6080659243200.

The previous prime is 10210440323387. The next prime is 10210440323443. The reversal of 10210440323421 is 12432304401201.

10210440323421 is a `hidden beast` number, since 1 + 0 + 2 + 1 + 0 + 4 + 403 + 234 + 21 = 666.

It is not a de Polignac number, because 10210440323421 - 2⁶ = 10210440323357 is a prime.

It is a super-3 number, since 3×10210440323421³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10210440323821) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 469175790 + ... + 469197551.

It is an arithmetic number, because the mean of its divisors is an integer number (525489071520).

Almost surely, 2^{10210440323421} is an apocalyptic number.

It is an amenable number.

10210440323421 is a deficient number, since it is larger than the sum of its proper divisors (6605209965219).

10210440323421 is a wasteful number, since it uses less digits than its factorization.

10210440323421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938373394 (or 938373388 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 10210440323421 its reverse (12432304401201), we get a palindrome (22642744724622).

The spelling of 10210440323421 in words is "ten trillion, two hundred ten billion, four hundred forty million, three hundred twenty-three thousand, four hundred twenty-one".