201434301520 has 80 divisors (see below), whose sum is σ = 507416184000. Its totient is φ = 74070484992.

The previous prime is 201434301511. The next prime is 201434301521. The reversal of 201434301520 is 25103434102.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201434301521) 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, 1663770 + ... + 1780729.

It is an arithmetic number, because the mean of its divisors is an integer number (6342702300).

Almost surely, 2^201434301520 is an apocalyptic number.

201434301520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201434301520 is an abundant number, since it is smaller than the sum of its proper divisors (305981882480).

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

201434301520 is a wasteful number, since it uses less digits than its factorization.

201434301520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3444572 (or 3444566 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 201434301520 its reverse (25103434102), we get a palindrome (226537735622).

The spelling of 201434301520 in words is "two hundred one billion, four hundred thirty-four million, three hundred one thousand, five hundred twenty".