231011323033 has 8 divisors (see below), whose sum is σ = 236654013960. Its totient is φ = 225369025920.

The previous prime is 231011323031. The next prime is 231011323079. The reversal of 231011323033 is 330323110132.

It can be written as a sum of positive squares in 4 ways, for example, as 6816648969 + 224194674064 = 82563^2 + 473492^2 .

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 231011323033 - 2¹ = 231011323031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231011322995 and 231011323013.

It is not an unprimeable number, because it can be changed into a prime (231011323031) 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, 1343983 + ... + 1506091.

It is an arithmetic number, because the mean of its divisors is an integer number (29581751745).

Almost surely, 2^231011323033 is an apocalyptic number.

It is an amenable number.

231011323033 is a deficient number, since it is larger than the sum of its proper divisors (5642690927).

231011323033 is a wasteful number, since it uses less digits than its factorization.

231011323033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196907.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 231011323033 its reverse (330323110132), we get a palindrome (561334433165).

The spelling of 231011323033 in words is "two hundred thirty-one billion, eleven million, three hundred twenty-three thousand, thirty-three".