2101935308533 has 2 divisors, whose sum is σ = 2101935308534. Its totient is φ = 2101935308532.

The previous prime is 2101935308519. The next prime is 2101935308591. The reversal of 2101935308533 is 3358035391012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1476694027249 + 625241281284 = 1215193^2 + 790722^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2101935308533 is a prime.

It is a super-2 number, since 2×2101935308533² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2101935308533.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2101935308933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050967654266 + 1050967654267.

It is an arithmetic number, because the mean of its divisors is an integer number (1050967654267).

Almost surely, 2^{2101935308533} is an apocalyptic number.

It is an amenable number.

2101935308533 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101935308533 is an equidigital number, since it uses as much as digits as its factorization.

2101935308533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 291600, while the sum is 43.

The spelling of 2101935308533 in words is "two trillion, one hundred one billion, nine hundred thirty-five million, three hundred eight thousand, five hundred thirty-three".