21010132093 has 2 divisors, whose sum is σ = 21010132094. Its totient is φ = 21010132092.

The previous prime is 21010132079. The next prime is 21010132139. The reversal of 21010132093 is 39023101012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18327202884 + 2682929209 = 135378^2 + 51797^2 .

It is a cyclic number.

It is not a de Polignac number, because 21010132093 - 2⁵ = 21010132061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21010130093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10505066046 + 10505066047.

It is an arithmetic number, because the mean of its divisors is an integer number (10505066047).

Almost surely, 2^21010132093 is an apocalyptic number.

It is an amenable number.

21010132093 is a deficient number, since it is larger than the sum of its proper divisors (1).

21010132093 is an equidigital number, since it uses as much as digits as its factorization.

21010132093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 22.

The spelling of 21010132093 in words is "twenty-one billion, ten million, one hundred thirty-two thousand, ninety-three".