1230101111 has 8 divisors (see below), whose sum is σ = 1324990464. Its totient is φ = 1138662360.

The previous prime is 1230101083. The next prime is 1230101143. The reversal of 1230101111 is 1111010321.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1230101111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1230101092 and 1230101101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230104111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 861911 + ... + 863336.

It is an arithmetic number, because the mean of its divisors is an integer number (165623808).

Almost surely, 2^1230101111 is an apocalyptic number.

1230101111 is a deficient number, since it is larger than the sum of its proper divisors (94889353).

1230101111 is a wasteful number, since it uses less digits than its factorization.

1230101111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1725301.

The product of its (nonzero) digits is 6, while the sum is 11.

The square root of 1230101111 is about 35072.7973078852. The cubic root of 1230101111 is about 1071.4706278289.

Adding to 1230101111 its reverse (1111010321), we get a palindrome (2341111432).

The spelling of 1230101111 in words is "one billion, two hundred thirty million, one hundred one thousand, one hundred eleven".