1230201111 has 8 divisors (see below), whose sum is σ = 1640890240. Its totient is φ = 819823032.

The previous prime is 1230201101. The next prime is 1230201127. The reversal of 1230201111 is 1111020321.

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

It is not a de Polignac number, because 1230201111 - 2¹⁵ = 1230168343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230201101) 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, 68371 + ... + 84468.

It is an arithmetic number, because the mean of its divisors is an integer number (205111280).

Almost surely, 2^1230201111 is an apocalyptic number.

1230201111 is a deficient number, since it is larger than the sum of its proper divisors (410689129).

1230201111 is a wasteful number, since it uses less digits than its factorization.

1230201111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155525.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 1230201111 is about 35074.2228851902. Note that the first 3 decimals coincide. The cubic root of 1230201111 is about 1071.4996617998.

Adding to 1230201111 its reverse (1111020321), we get a palindrome (2341221432).

The spelling of 1230201111 in words is "one billion, two hundred thirty million, two hundred one thousand, one hundred eleven".