11231120103 has 32 divisors (see below), whose sum is σ = 17563732992. Its totient is φ = 6251212800.

The previous prime is 11231120101. The next prime is 11231120113. The reversal of 11231120103 is 30102113211.

It is a happy number.

It is not a de Polignac number, because 11231120103 - 2¹ = 11231120101 is a prime.

It is a super-2 number, since 2×11231120103² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11231120101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89383 + ... + 174503.

It is an arithmetic number, because the mean of its divisors is an integer number (548866656).

Almost surely, 2^11231120103 is an apocalyptic number.

11231120103 is a deficient number, since it is larger than the sum of its proper divisors (6332612889).

11231120103 is a wasteful number, since it uses less digits than its factorization.

11231120103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85295.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 11231120103 its reverse (30102113211), we get a palindrome (41333233314).

The spelling of 11231120103 in words is "eleven billion, two hundred thirty-one million, one hundred twenty thousand, one hundred three".