13501420505312 has 72 divisors (see below), whose sum is σ = 26926218722592. Its totient is φ = 6664044441600.

The previous prime is 13501420505311. The next prime is 13501420505327. The reversal of 13501420505312 is 21350502410531.

It is a super-2 number, since 2×13501420505312² (a number of 27 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13501420505311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102966512 + ... + 103097552.

It is an arithmetic number, because the mean of its divisors is an integer number (373975260036).

Almost surely, 2^{13501420505312} is an apocalyptic number.

It is an amenable number.

13501420505312 is a deficient number, since it is larger than the sum of its proper divisors (13424798217280).

13501420505312 is a wasteful number, since it uses less digits than its factorization.

13501420505312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131540 (or 131423 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

Adding to 13501420505312 its reverse (21350502410531), we get a palindrome (34851922915843).

The spelling of 13501420505312 in words is "thirteen trillion, five hundred one billion, four hundred twenty million, five hundred five thousand, three hundred twelve".