616323273131 has 4 divisors (see below), whose sum is σ = 616328618064. Its totient is φ = 616317928200.

The previous prime is 616323273121. The next prime is 616323273161. The reversal of 616323273131 is 131372323616.

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 616323273131 - 2²⁶ = 616256164267 is a prime.

It is a super-2 number, since 2×616323273131² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (616323273121) 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, 2495600 + ... + 2731421.

It is an arithmetic number, because the mean of its divisors is an integer number (154082154516).

Almost surely, 2^616323273131 is an apocalyptic number.

616323273131 is a deficient number, since it is larger than the sum of its proper divisors (5344933).

616323273131 is a wasteful number, since it uses less digits than its factorization.

616323273131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5344932.

The product of its digits is 81648, while the sum is 38.

Adding to 616323273131 its reverse (131372323616), we get a palindrome (747695596747).

The spelling of 616323273131 in words is "six hundred sixteen billion, three hundred twenty-three million, two hundred seventy-three thousand, one hundred thirty-one".