13771252120 has 32 divisors (see below), whose sum is σ = 30988688400. Its totient is φ = 5507901568.

The previous prime is 13771252081. The next prime is 13771252133. The reversal of 13771252120 is 2125217731.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 636846 + ... + 658114.

Almost surely, 2^13771252120 is an apocalyptic number.

13771252120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13771252120 is an abundant number, since it is smaller than the sum of its proper divisors (17217436280).

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

13771252120 is a wasteful number, since it uses less digits than its factorization.

13771252120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37467 (or 37463 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 31.

Adding to 13771252120 its reverse (2125217731), we get a palindrome (15896469851).

The spelling of 13771252120 in words is "thirteen billion, seven hundred seventy-one million, two hundred fifty-two thousand, one hundred twenty".