51435034131321 has 8 divisors (see below), whose sum is σ = 76200050564960. Its totient is φ = 34290022754196.

The previous prime is 51435034131253. The next prime is 51435034131337. The reversal of 51435034131321 is 12313143053415.

51435034131321 is a `hidden beast` number, since 5 + 1 + 4 + 3 + 503 + 4 + 13 + 132 + 1 = 666.

It is not a de Polignac number, because 51435034131321 - 2¹⁷ = 51435034000249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51435034131721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 952500632035 + ... + 952500632088.

It is an arithmetic number, because the mean of its divisors is an integer number (9525006320620).

Almost surely, 2^{51435034131321} is an apocalyptic number.

It is an amenable number.

51435034131321 is a deficient number, since it is larger than the sum of its proper divisors (24765016433639).

51435034131321 is a wasteful number, since it uses less digits than its factorization.

51435034131321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1905001264132 (or 1905001264126 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

Adding to 51435034131321 its reverse (12313143053415), we get a palindrome (63748177184736).

The spelling of 51435034131321 in words is "fifty-one trillion, four hundred thirty-five billion, thirty-four million, one hundred thirty-one thousand, three hundred twenty-one".