20431242200 has 24 divisors (see below), whose sum is σ = 47502638580. Its totient is φ = 8172496800.

The previous prime is 20431242163. The next prime is 20431242233. The reversal of 20431242200 is 224213402.

It is a super-3 number, since 3×20431242200³ (a number of 32 digits) contains 333 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51077906 + ... + 51078305.

Almost surely, 2^20431242200 is an apocalyptic number.

20431242200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20431242200 is an abundant number, since it is smaller than the sum of its proper divisors (27071396380).

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

20431242200 is a wasteful number, since it uses less digits than its factorization.

20431242200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102156227 (or 102156218 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 20431242200 its reverse (224213402), we get a palindrome (20655455602).

The spelling of 20431242200 in words is "twenty billion, four hundred thirty-one million, two hundred forty-two thousand, two hundred".