201116342121 has 4 divisors (see below), whose sum is σ = 268155122832. Its totient is φ = 134077561412.

The previous prime is 201116342113. The next prime is 201116342159. The reversal of 201116342121 is 121243611102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201116342121 - 2³ = 201116342113 is a prime.

It is a super-2 number, since 2×201116342121² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201116342091 and 201116342100.

It is not an unprimeable number, because it can be changed into a prime (201116342111) 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, 33519390351 + ... + 33519390356.

It is an arithmetic number, because the mean of its divisors is an integer number (67038780708).

Almost surely, 2^201116342121 is an apocalyptic number.

It is an amenable number.

201116342121 is a deficient number, since it is larger than the sum of its proper divisors (67038780711).

201116342121 is an equidigital number, since it uses as much as digits as its factorization.

201116342121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67038780710.

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 201116342121 its reverse (121243611102), we get a palindrome (322359953223).

The spelling of 201116342121 in words is "two hundred one billion, one hundred sixteen million, three hundred forty-two thousand, one hundred twenty-one".