33420313400020 has 12 divisors (see below), whose sum is σ = 70182658140084. Its totient is φ = 13368125360000.

The previous prime is 33420313399997. The next prime is 33420313400077. The reversal of 33420313400020 is 2000431302433.

It can be written as a sum of positive squares in 2 ways, for example, as 3926159954116 + 29494153445904 = 1981454^2 + 5430852^2 .

It is a super-2 number, since 2×33420313400020² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 835507834981 + ... + 835507835020.

It is an arithmetic number, because the mean of its divisors is an integer number (5848554845007).

Almost surely, 2^{33420313400020} is an apocalyptic number.

It is an amenable number.

33420313400020 is an abundant number, since it is smaller than the sum of its proper divisors (36762344740064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33420313400020 is a wasteful number, since it uses less digits than its factorization.

33420313400020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1671015670010 (or 1671015670008 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 33420313400020 its reverse (2000431302433), we get a palindrome (35420744702453).

The spelling of 33420313400020 in words is "thirty-three trillion, four hundred twenty billion, three hundred thirteen million, four hundred thousand, twenty".