4021343123137 has 2 divisors, whose sum is σ = 4021343123138. Its totient is φ = 4021343123136.

The previous prime is 4021343123131. The next prime is 4021343123153. The reversal of 4021343123137 is 7313213431204.

4021343123137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3697990536256 + 323352586881 = 1923016^2 + 568641^2 .

It is a cyclic number.

It is not a de Polignac number, because 4021343123137 - 2¹⁹ = 4021342598849 is a prime.

It is a super-2 number, since 2×4021343123137² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4021343123131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2010671561568 + 2010671561569.

It is an arithmetic number, because the mean of its divisors is an integer number (2010671561569).

Almost surely, 2^{4021343123137} is an apocalyptic number.

It is an amenable number.

4021343123137 is a deficient number, since it is larger than the sum of its proper divisors (1).

4021343123137 is an equidigital number, since it uses as much as digits as its factorization.

4021343123137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 34.

The spelling of 4021343123137 in words is "four trillion, twenty-one billion, three hundred forty-three million, one hundred twenty-three thousand, one hundred thirty-seven".