33203217913949 has 2 divisors, whose sum is σ = 33203217913950. Its totient is φ = 33203217913948.

The previous prime is 33203217913913. The next prime is 33203217913961. The reversal of 33203217913949 is 94931971230233.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22812974821849 + 10390243092100 = 4776293^2 + 3223390^2 .

It is an emirp because it is prime and its reverse (94931971230233) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33203217913949 - 2³⁶ = 33134498437213 is a prime.

It is a super-2 number, since 2×33203217913949² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33203217913894 and 33203217913903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33203217913969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16601608956974 + 16601608956975.

It is an arithmetic number, because the mean of its divisors is an integer number (16601608956975).

Almost surely, 2^{33203217913949} is an apocalyptic number.

It is an amenable number.

33203217913949 is a deficient number, since it is larger than the sum of its proper divisors (1).

33203217913949 is an equidigital number, since it uses as much as digits as its factorization.

33203217913949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6613488, while the sum is 56.

The spelling of 33203217913949 in words is "thirty-three trillion, two hundred three billion, two hundred seventeen million, nine hundred thirteen thousand, nine hundred forty-nine".