1201232330111 has 4 divisors (see below), whose sum is σ = 1310435269224. Its totient is φ = 1092029391000.

The previous prime is 1201232330029. The next prime is 1201232330113. The reversal of 1201232330111 is 1110332321021.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1201232330111 is a prime.

It is a super-2 number, since 2×1201232330111² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201232330113) 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, 54601469540 + ... + 54601469561.

It is an arithmetic number, because the mean of its divisors is an integer number (327608817306).

Almost surely, 2^{1201232330111} is an apocalyptic number.

1201232330111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1201232330111 is a deficient number, since it is larger than the sum of its proper divisors (109202939113).

1201232330111 is a wasteful number, since it uses less digits than its factorization.

1201232330111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109202939112.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1201232330111 its reverse (1110332321021), we get a palindrome (2311564651132).

The spelling of 1201232330111 in words is "one trillion, two hundred one billion, two hundred thirty-two million, three hundred thirty thousand, one hundred eleven".