20110430133200 has 120 divisors (see below), whose sum is σ = 52785934329216. Its totient is φ = 7302016512000.

The previous prime is 20110430133181. The next prime is 20110430133203. The reversal of 20110430133200 is 233103401102.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110430133203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 434456 + ... + 6356855.

Almost surely, 2^{20110430133200} is an apocalyptic number.

20110430133200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20110430133200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26392967164608).

20110430133200 is an abundant number, since it is smaller than the sum of its proper divisors (32675504196016).

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

20110430133200 is a wasteful number, since it uses less digits than its factorization.

20110430133200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6792013 (or 6792002 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20110430133200 its reverse (233103401102), we get a palindrome (20343533534302).

The spelling of 20110430133200 in words is "twenty trillion, one hundred ten billion, four hundred thirty million, one hundred thirty-three thousand, two hundred".