231103313011 has 32 divisors (see below), whose sum is σ = 253065254400. Its totient is φ = 210451584000.

The previous prime is 231103312927. The next prime is 231103313033. The reversal of 231103313011 is 110313301132.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231103313011 is a prime.

It is a super-2 number, since 2×231103313011² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231103313011.

It is not an unprimeable number, because it can be changed into a prime (231103313711) 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, 43527825 + ... + 43533133.

It is an arithmetic number, because the mean of its divisors is an integer number (7908289200).

Almost surely, 2^231103313011 is an apocalyptic number.

231103313011 is a deficient number, since it is larger than the sum of its proper divisors (21961941389).

231103313011 is a wasteful number, since it uses less digits than its factorization.

231103313011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6591.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 231103313011 its reverse (110313301132), we get a palindrome (341416614143).

The spelling of 231103313011 in words is "two hundred thirty-one billion, one hundred three million, three hundred thirteen thousand, eleven".