32421121 has 2 divisors, whose sum is σ = 32421122. Its totient is φ = 32421120.

The previous prime is 32421083. The next prime is 32421127. The reversal of 32421121 is 12112423.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30636225 + 1784896 = 5535^2 + 1336^2 .

It is an emirp because it is prime and its reverse (12112423) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32421121 - 2²³ = 24032513 is a prime.

It is a super-2 number, since 2×32421121² = 2102258173793282, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 32421095 and 32421104.

It is not a weakly prime, because it can be changed into another prime (32421127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16210560 + 16210561.

It is an arithmetic number, because the mean of its divisors is an integer number (16210561).

Almost surely, 2^32421121 is an apocalyptic number.

It is an amenable number.

32421121 is a deficient number, since it is larger than the sum of its proper divisors (1).

32421121 is an equidigital number, since it uses as much as digits as its factorization.

32421121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96, while the sum is 16.

The square root of 32421121 is about 5693.9547767786. The cubic root of 32421121 is about 318.8668285831.

Adding to 32421121 its reverse (12112423), we get a palindrome (44533544).

The spelling of 32421121 in words is "thirty-two million, four hundred twenty-one thousand, one hundred twenty-one".