93730121081 has 2 divisors, whose sum is σ = 93730121082. Its totient is φ = 93730121080.

The previous prime is 93730121063. The next prime is 93730121123. The reversal of 93730121081 is 18012103739.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90890190400 + 2839930681 = 301480^2 + 53291^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-93730121081 is a prime.

It is a super-2 number, since 2×93730121081² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (93730121041) 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 as a sum of consecutive naturals, namely, 46865060540 + 46865060541.

It is an arithmetic number, because the mean of its divisors is an integer number (46865060541).

Almost surely, 2^93730121081 is an apocalyptic number.

It is an amenable number.

93730121081 is a deficient number, since it is larger than the sum of its proper divisors (1).

93730121081 is an equidigital number, since it uses as much as digits as its factorization.

93730121081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 35.

The spelling of 93730121081 in words is "ninety-three billion, seven hundred thirty million, one hundred twenty-one thousand, eighty-one".