33420699903 has 4 divisors (see below), whose sum is σ = 44560933208. Its totient is φ = 22280466600.

The previous prime is 33420699901. The next prime is 33420699913. The reversal of 33420699903 is 30999602433.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30999602433 = 3 ⋅10333200811.

It is not a de Polignac number, because 33420699903 - 2¹ = 33420699901 is a prime.

It is a super-2 number, since 2×33420699903² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33420699901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5570116648 + ... + 5570116653.

It is an arithmetic number, because the mean of its divisors is an integer number (11140233302).

Almost surely, 2^33420699903 is an apocalyptic number.

33420699903 is a deficient number, since it is larger than the sum of its proper divisors (11140233305).

33420699903 is a wasteful number, since it uses less digits than its factorization.

33420699903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11140233304.

The product of its (nonzero) digits is 944784, while the sum is 48.

The spelling of 33420699903 in words is "thirty-three billion, four hundred twenty million, six hundred ninety-nine thousand, nine hundred three".