309019822101 has 6 divisors (see below), whose sum is σ = 446361965270. Its totient is φ = 206013214728.

The previous prime is 309019822087. The next prime is 309019822141. The reversal of 309019822101 is 101228910903.

It can be written as a sum of positive squares in only one way, i.e., 258236748900 + 50783073201 = 508170^2 + 225351^2 .

It is not a de Polignac number, because 309019822101 - 2⁹ = 309019821589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (309019822141) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17167767886 + ... + 17167767903.

Almost surely, 2^309019822101 is an apocalyptic number.

It is an amenable number.

309019822101 is a deficient number, since it is larger than the sum of its proper divisors (137342143169).

309019822101 is a wasteful number, since it uses less digits than its factorization.

309019822101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34335535795 (or 34335535792 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The spelling of 309019822101 in words is "three hundred nine billion, nineteen million, eight hundred twenty-two thousand, one hundred one".