231103031133 has 24 divisors (see below), whose sum is σ = 353290828608. Its totient is φ = 133851524352.

The previous prime is 231103031059. The next prime is 231103031161. The reversal of 231103031133 is 331130301132.

It is not a de Polignac number, because 231103031133 - 2²¹ = 231100933981 is a prime.

It is a super-2 number, since 2×231103031133² (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 (231103031183) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13397985 + ... + 13415222.

It is an arithmetic number, because the mean of its divisors is an integer number (14720451192).

Almost surely, 2^231103031133 is an apocalyptic number.

It is an amenable number.

231103031133 is a deficient number, since it is larger than the sum of its proper divisors (122187797475).

231103031133 is a wasteful number, since it uses less digits than its factorization.

231103031133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26813253 (or 26813240 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 231103031133 its reverse (331130301132), we get a palindrome (562233332265).

The spelling of 231103031133 in words is "two hundred thirty-one billion, one hundred three million, thirty-one thousand, one hundred thirty-three".