231103011 has 16 divisors (see below), whose sum is σ = 322755840. Its totient is φ = 146810400.

The previous prime is 231103009. The next prime is 231103021. The reversal of 231103011 is 110301132.

231103011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 231103011 - 2¹ = 231103009 is a prime.

It is a super-2 number, since 2×231103011² = 106817203386532242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231103021) 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, 12336 + ... + 24786.

It is an arithmetic number, because the mean of its divisors is an integer number (20172240).

Almost surely, 2^231103011 is an apocalyptic number.

231103011 is a deficient number, since it is larger than the sum of its proper divisors (91652829).

231103011 is a wasteful number, since it uses less digits than its factorization.

231103011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12746.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 231103011 is about 15202.0725889597. The cubic root of 231103011 is about 613.6704359123.

Adding to 231103011 its reverse (110301132), we get a palindrome (341404143).

The spelling of 231103011 in words is "two hundred thirty-one million, one hundred three thousand, eleven".