32130640340021 has 2 divisors, whose sum is σ = 32130640340022. Its totient is φ = 32130640340020.

The previous prime is 32130640339999. The next prime is 32130640340027. The reversal of 32130640340021 is 12004304603123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26571560967121 + 5559079372900 = 5154761^2 + 2357770^2 .

It is a cyclic number.

It is not a de Polignac number, because 32130640340021 - 2²² = 32130636145717 is a prime.

It is a super-3 number, since 3×32130640340021³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32130640340027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16065320170010 + 16065320170011.

It is an arithmetic number, because the mean of its divisors is an integer number (16065320170011).

Almost surely, 2^{32130640340021} is an apocalyptic number.

It is an amenable number.

32130640340021 is a deficient number, since it is larger than the sum of its proper divisors (1).

32130640340021 is an equidigital number, since it uses as much as digits as its factorization.

32130640340021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 32130640340021 its reverse (12004304603123), we get a palindrome (44134944943144).

The spelling of 32130640340021 in words is "thirty-two trillion, one hundred thirty billion, six hundred forty million, three hundred forty thousand, twenty-one".