231113020231133 has 4 divisors (see below), whose sum is σ = 231130879220988. Its totient is φ = 231095161241280.

The previous prime is 231113020231087. The next prime is 231113020231157. The reversal of 231113020231133 is 331132020311132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 213612167937529 + 17500852293604 = 14615477^2 + 4183402^2 .

It is a cyclic number.

It is not a de Polignac number, because 231113020231133 - 2⁶ = 231113020231069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231113020231183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8929475516 + ... + 8929501397.

It is an arithmetic number, because the mean of its divisors is an integer number (57782719805247).

Almost surely, 2^{231113020231133} is an apocalyptic number.

It is an amenable number.

231113020231133 is a deficient number, since it is larger than the sum of its proper divisors (17858989855).

231113020231133 is a wasteful number, since it uses less digits than its factorization.

231113020231133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17858989854.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 231113020231133 its reverse (331132020311132), we get a palindrome (562245040542265).

The spelling of 231113020231133 in words is "two hundred thirty-one trillion, one hundred thirteen billion, twenty million, two hundred thirty-one thousand, one hundred thirty-three".