201111313421234 has 4 divisors (see below), whose sum is σ = 301666970131854. Its totient is φ = 100555656710616.

The previous prime is 201111313421231. The next prime is 201111313421261. The reversal of 201111313421234 is 432124313111102.

201111313421234 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 200163215889025 + 948097532209 = 14147905^2 + 973703^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 201111313421197 and 201111313421206.

It is not an unprimeable number, because it can be changed into a prime (201111313421231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50277828355307 + ... + 50277828355310.

Almost surely, 2^{201111313421234} is an apocalyptic number.

201111313421234 is a deficient number, since it is larger than the sum of its proper divisors (100555656710620).

201111313421234 is a wasteful number, since it uses less digits than its factorization.

201111313421234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100555656710619.

The product of its (nonzero) digits is 3456, while the sum is 29.

Adding to 201111313421234 its reverse (432124313111102), we get a palindrome (633235626532336).

The spelling of 201111313421234 in words is "two hundred one trillion, one hundred eleven billion, three hundred thirteen million, four hundred twenty-one thousand, two hundred thirty-four".