11120101231 has 4 divisors (see below), whose sum is σ = 11120328864. Its totient is φ = 11119873600.

The previous prime is 11120101229. The next prime is 11120101271. The reversal of 11120101231 is 13210102111.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 11120101231 - 2¹ = 11120101229 is a prime.

It is a super-2 number, since 2×11120101231² (a number of 21 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 (11120101211) 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, 7330 + ... + 149311.

It is an arithmetic number, because the mean of its divisors is an integer number (2780082216).

Almost surely, 2^11120101231 is an apocalyptic number.

11120101231 is a deficient number, since it is larger than the sum of its proper divisors (227633).

11120101231 is an equidigital number, since it uses as much as digits as its factorization.

11120101231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227632.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 11120101231 its reverse (13210102111), we get a palindrome (24330203342).

The spelling of 11120101231 in words is "eleven billion, one hundred twenty million, one hundred one thousand, two hundred thirty-one".