116321543121 has 24 divisors (see below), whose sum is σ = 188291794240. Its totient is φ = 62559482112.

The previous prime is 116321543113. The next prime is 116321543207. The reversal of 116321543121 is 121345123611.

It is not a de Polignac number, because 116321543121 - 2³ = 116321543113 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (116321543111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9577186 + ... + 9589323.

Almost surely, 2^116321543121 is an apocalyptic number.

It is an amenable number.

116321543121 is a deficient number, since it is larger than the sum of its proper divisors (71970251119).

116321543121 is a wasteful number, since it uses less digits than its factorization.

116321543121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19166553 (or 19166536 counting only the distinct ones).

The product of its digits is 4320, while the sum is 30.

Adding to 116321543121 its reverse (121345123611), we get a palindrome (237666666732).

The spelling of 116321543121 in words is "one hundred sixteen billion, three hundred twenty-one million, five hundred forty-three thousand, one hundred twenty-one".