202420134320 has 80 divisors (see below), whose sum is σ = 496574928480. Its totient is φ = 76524134400.

The previous prime is 202420134313. The next prime is 202420134331. The reversal of 202420134320 is 23431024202.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 481760 + ... + 798080.

It is an arithmetic number, because the mean of its divisors is an integer number (6207186606).

Almost surely, 2^202420134320 is an apocalyptic number.

202420134320 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 202420134320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248287464240).

202420134320 is an abundant number, since it is smaller than the sum of its proper divisors (294154794160).

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

202420134320 is a wasteful number, since it uses less digits than its factorization.

202420134320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316774 (or 316768 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 202420134320 its reverse (23431024202), we get a palindrome (225851158522).

The spelling of 202420134320 in words is "two hundred two billion, four hundred twenty million, one hundred thirty-four thousand, three hundred twenty".