231011111103 has 16 divisors (see below), whose sum is σ = 315352304256. Its totient is φ = 150342625440.

The previous prime is 231011111101. The next prime is 231011111131. The reversal of 231011111103 is 301111110132.

It is not a de Polignac number, because 231011111103 - 2¹ = 231011111101 is a prime.

It is a super-2 number, since 2×231011111103² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231011111101) 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, 260800 + ... + 728037.

It is an arithmetic number, because the mean of its divisors is an integer number (19709519016).

Almost surely, 2^231011111103 is an apocalyptic number.

231011111103 is a deficient number, since it is larger than the sum of its proper divisors (84341193153).

231011111103 is a wasteful number, since it uses less digits than its factorization.

231011111103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990694.

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 231011111103 its reverse (301111110132), we get a palindrome (532122221235).

The spelling of 231011111103 in words is "two hundred thirty-one billion, eleven million, one hundred eleven thousand, one hundred three".