231123440230133 has 8 divisors (see below), whose sum is σ = 252205746031200. Its totient is φ = 210052981756080.

The previous prime is 231123440230087. The next prime is 231123440230153. The reversal of 231123440230133 is 331032044321132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 231123440230133 - 2²² = 231123436035829 is a prime.

It is a super-2 number, since 2×231123440230133² (a number of 30 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 231123440230133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231123440230153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2961790958 + ... + 2961868991.

It is an arithmetic number, because the mean of its divisors is an integer number (31525718253900).

Almost surely, 2^{231123440230133} is an apocalyptic number.

It is an amenable number.

231123440230133 is a deficient number, since it is larger than the sum of its proper divisors (21082305801067).

231123440230133 is a wasteful number, since it uses less digits than its factorization.

231123440230133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5923663507.

The product of its (nonzero) digits is 31104, while the sum is 32.

Adding to 231123440230133 its reverse (331032044321132), we get a palindrome (562155484551265).

The spelling of 231123440230133 in words is "two hundred thirty-one trillion, one hundred twenty-three billion, four hundred forty million, two hundred thirty thousand, one hundred thirty-three".