1230120332111 has 16 divisors (see below), whose sum is σ = 1367963523360. Its totient is φ = 1096634248320.

The previous prime is 1230120332101. The next prime is 1230120332167. The reversal of 1230120332111 is 1112330210321.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1230120332111 - 2³⁸ = 955242425167 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 (1230120332101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 615545 + ... + 1684973.

It is an arithmetic number, because the mean of its divisors is an integer number (85497720210).

Almost surely, 2^{1230120332111} is an apocalyptic number.

1230120332111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1230120332111 is a deficient number, since it is larger than the sum of its proper divisors (137843191249).

1230120332111 is a wasteful number, since it uses less digits than its factorization.

1230120332111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071466.

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

Adding to 1230120332111 its reverse (1112330210321), we get a palindrome (2342450542432).

The spelling of 1230120332111 in words is "one trillion, two hundred thirty billion, one hundred twenty million, three hundred thirty-two thousand, one hundred eleven".