213113202101421 has 16 divisors (see below), whose sum is σ = 285299962819200. Its totient is φ = 141501947837888.

The previous prime is 213113202101419. The next prime is 213113202101441. The reversal of 213113202101421 is 124101202311312.

It is a cyclic number.

It is not a de Polignac number, because 213113202101421 - 2¹ = 213113202101419 is a prime.

It is a super-2 number, since 2×213113202101421² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213113202101391 and 213113202101400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213113202101411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123280086 + ... + 124996823.

It is an arithmetic number, because the mean of its divisors is an integer number (17831247676200).

Almost surely, 2^{213113202101421} is an apocalyptic number.

It is an amenable number.

213113202101421 is a deficient number, since it is larger than the sum of its proper divisors (72186760717779).

213113202101421 is a wasteful number, since it uses less digits than its factorization.

213113202101421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248278068.

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 213113202101421 its reverse (124101202311312), we get a palindrome (337214404412733).

The spelling of 213113202101421 in words is "two hundred thirteen trillion, one hundred thirteen billion, two hundred two million, one hundred one thousand, four hundred twenty-one".