51433313131 has 8 divisors (see below), whose sum is σ = 52445903328. Its totient is φ = 50428728000.

The previous prime is 51433313047. The next prime is 51433313147. The reversal of 51433313131 is 13131333415.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51433313131 - 2¹⁹ = 51432788843 is a prime.

It is a super-2 number, since 2×51433313131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51433313131.

It is not an unprimeable number, because it can be changed into a prime (51433313171) 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, 1988290 + ... + 2013991.

It is an arithmetic number, because the mean of its divisors is an integer number (6555737916).

Almost surely, 2^51433313131 is an apocalyptic number.

51433313131 is a deficient number, since it is larger than the sum of its proper divisors (1012590197).

51433313131 is a wasteful number, since it uses less digits than its factorization.

51433313131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4002533.

The product of its digits is 4860, while the sum is 28.

Adding to 51433313131 its reverse (13131333415), we get a palindrome (64564646546).

The spelling of 51433313131 in words is "fifty-one billion, four hundred thirty-three million, three hundred thirteen thousand, one hundred thirty-one".