73021420601 has 2 divisors, whose sum is σ = 73021420602. Its totient is φ = 73021420600.

The previous prime is 73021420567. The next prime is 73021420631. The reversal of 73021420601 is 10602412037.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56524587001 + 16496833600 = 237749^2 + 128440^2 .

It is a cyclic number.

It is not a de Polignac number, because 73021420601 - 2¹⁴ = 73021404217 is a prime.

It is a super-3 number, since 3×73021420601³ (a number of 34 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (73021420631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36510710300 + 36510710301.

It is an arithmetic number, because the mean of its divisors is an integer number (36510710301).

Almost surely, 2^73021420601 is an apocalyptic number.

It is an amenable number.

73021420601 is a deficient number, since it is larger than the sum of its proper divisors (1).

73021420601 is an equidigital number, since it uses as much as digits as its factorization.

73021420601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 26.

Adding to 73021420601 its reverse (10602412037), we get a palindrome (83623832638).

The spelling of 73021420601 in words is "seventy-three billion, twenty-one million, four hundred twenty thousand, six hundred one".