33700203499981 has 2 divisors, whose sum is σ = 33700203499982. Its totient is φ = 33700203499980.

The previous prime is 33700203499961. The next prime is 33700203500027. The reversal of 33700203499981 is 18999430200733.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33671721874756 + 28481625225 = 5802734^2 + 168765^2 .

It is an emirp because it is prime and its reverse (18999430200733) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33700203499981 is a prime.

It is a super-2 number, since 2×33700203499981² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33700203499961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16850101749990 + 16850101749991.

It is an arithmetic number, because the mean of its divisors is an integer number (16850101749991).

Almost surely, 2^{33700203499981} is an apocalyptic number.

It is an amenable number.

33700203499981 is a deficient number, since it is larger than the sum of its proper divisors (1).

33700203499981 is an equidigital number, since it uses as much as digits as its factorization.

33700203499981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8817984, while the sum is 58.

The spelling of 33700203499981 in words is "thirty-three trillion, seven hundred billion, two hundred three million, four hundred ninety-nine thousand, nine hundred eighty-one".