32351213421 has 12 divisors (see below), whose sum is σ = 47495589180. Its totient is φ = 21213910080.

The previous prime is 32351213387. The next prime is 32351213437. The reversal of 32351213421 is 12431215323.

32351213421 is a `hidden beast` number, since 3 + 23 + 5 + 1 + 213 + 421 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 18476964900 + 13874248521 = 135930^2 + 117789^2 .

It is not a de Polignac number, because 32351213421 - 2²⁶ = 32284104557 is a prime.

It is a super-2 number, since 2×32351213421² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32351213021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29463216 + ... + 29464313.

It is an arithmetic number, because the mean of its divisors is an integer number (3957965765).

Almost surely, 2^32351213421 is an apocalyptic number.

It is an amenable number.

32351213421 is a deficient number, since it is larger than the sum of its proper divisors (15144375759).

32351213421 is a wasteful number, since it uses less digits than its factorization.

32351213421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58927596 (or 58927593 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

Adding to 32351213421 its reverse (12431215323), we get a palindrome (44782428744).

The spelling of 32351213421 in words is "thirty-two billion, three hundred fifty-one million, two hundred thirteen thousand, four hundred twenty-one".