33420023120 has 80 divisors (see below), whose sum is σ = 86736716352. Its totient is φ = 11870100480.

The previous prime is 33420023107. The next prime is 33420023129. The reversal of 33420023120 is 2132002433.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×33420023120² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 33420023092 and 33420023101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33420023129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 403757 + ... + 479436.

Almost surely, 2^33420023120 is an apocalyptic number.

It is an amenable number.

33420023120 is an abundant number, since it is smaller than the sum of its proper divisors (53316693232).

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

33420023120 is a wasteful number, since it uses less digits than its factorization.

33420023120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883260 (or 883254 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 33420023120 its reverse (2132002433), we get a palindrome (35552025553).

The spelling of 33420023120 in words is "thirty-three billion, four hundred twenty million, twenty-three thousand, one hundred twenty".