551245321131 has 8 divisors (see below), whose sum is σ = 735000889920. Its totient is φ = 367493316552.

The previous prime is 551245321129. The next prime is 551245321163. The reversal of 551245321131 is 131123542155.

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

It is not a de Polignac number, because 551245321131 - 2¹ = 551245321129 is a prime.

It is a super-2 number, since 2×551245321131² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 551245321092 and 551245321101.

It is not an unprimeable number, because it can be changed into a prime (551245321831) 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, 506461 + ... + 1165758.

It is an arithmetic number, because the mean of its divisors is an integer number (91875111240).

Almost surely, 2^551245321131 is an apocalyptic number.

551245321131 is a deficient number, since it is larger than the sum of its proper divisors (183755568789).

551245321131 is a wasteful number, since it uses less digits than its factorization.

551245321131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1782105.

The product of its digits is 18000, while the sum is 33.

Adding to 551245321131 its reverse (131123542155), we get a palindrome (682368863286).

The spelling of 551245321131 in words is "five hundred fifty-one billion, two hundred forty-five million, three hundred twenty-one thousand, one hundred thirty-one".