20402967133 has 2 divisors, whose sum is σ = 20402967134. Its totient is φ = 20402967132.

The previous prime is 20402967119. The next prime is 20402967149. The reversal of 20402967133 is 33176920402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11070827524 + 9332139609 = 105218^2 + 96603^2 .

It is a cyclic number.

It is not a de Polignac number, because 20402967133 - 2⁹ = 20402966621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20402967092 and 20402967101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20402967833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10201483566 + 10201483567.

It is an arithmetic number, because the mean of its divisors is an integer number (10201483567).

Almost surely, 2^20402967133 is an apocalyptic number.

It is an amenable number.

20402967133 is a deficient number, since it is larger than the sum of its proper divisors (1).

20402967133 is an equidigital number, since it uses as much as digits as its factorization.

20402967133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 37.

The spelling of 20402967133 in words is "twenty billion, four hundred two million, nine hundred sixty-seven thousand, one hundred thirty-three".