1111230101 has 4 divisors (see below), whose sum is σ = 1111317804. Its totient is φ = 1111142400.

The previous prime is 1111230089. The next prime is 1111230103. The reversal of 1111230101 is 1010321111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1010321111 = 29 ⋅34838659.

It can be written as a sum of positive squares in 2 ways, for example, as 922579876 + 188650225 = 30374^2 + 13735^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111230101 - 2¹⁴ = 1111213717 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 (1111230103) 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, 20810 + ... + 51531.

It is an arithmetic number, because the mean of its divisors is an integer number (277829451).

Almost surely, 2^1111230101 is an apocalyptic number.

It is an amenable number.

1111230101 is a deficient number, since it is larger than the sum of its proper divisors (87703).

1111230101 is an equidigital number, since it uses as much as digits as its factorization.

1111230101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87702.

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

The square root of 1111230101 is about 33335.1181338840. The cubic root of 1111230101 is about 1035.7811402566.

Adding to 1111230101 its reverse (1010321111), we get a palindrome (2121551212).

The spelling of 1111230101 in words is "one billion, one hundred eleven million, two hundred thirty thousand, one hundred one".