51135135303143 has 4 divisors (see below), whose sum is σ = 54143084438640. Its totient is φ = 48127186167648.

The previous prime is 51135135303101. The next prime is 51135135303151. The reversal of 51135135303143 is 34130353153115.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51135135303143 - 2²⁴ = 51135118525927 is a prime.

It is a super-2 number, since 2×51135135303143² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51135135303097 and 51135135303106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51135135303193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1503974567723 + ... + 1503974567756.

It is an arithmetic number, because the mean of its divisors is an integer number (13535771109660).

Almost surely, 2^{51135135303143} is an apocalyptic number.

51135135303143 is a deficient number, since it is larger than the sum of its proper divisors (3007949135497).

51135135303143 is a wasteful number, since it uses less digits than its factorization.

51135135303143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3007949135496.

The product of its (nonzero) digits is 121500, while the sum is 38.

Adding to 51135135303143 its reverse (34130353153115), we get a palindrome (85265488456258).

The spelling of 51135135303143 in words is "fifty-one trillion, one hundred thirty-five billion, one hundred thirty-five million, three hundred three thousand, one hundred forty-three".