231203411131023 has 20 divisors (see below), whose sum is σ = 354712473938680. Its totient is φ = 149969780191152.

The previous prime is 231203411131009. The next prime is 231203411131103. The reversal of 231203411131023 is 320131114302132.

231203411131023 is a `hidden beast` number, since 2 + 3 + 1 + 2 + 0 + 341 + 1 + 1 + 310 + 2 + 3 = 666.

It is not a de Polignac number, because 231203411131023 - 2¹⁸ = 231203410868879 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231203411131123) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 38572471333 + ... + 38572477326.

It is an arithmetic number, because the mean of its divisors is an integer number (17735623696934).

Almost surely, 2^{231203411131023} is an apocalyptic number.

231203411131023 is a deficient number, since it is larger than the sum of its proper divisors (123509062807657).

231203411131023 is an equidigital number, since it uses as much as digits as its factorization.

231203411131023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77144948708 (or 77144948699 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 231203411131023 its reverse (320131114302132), we get a palindrome (551334525433155).

The spelling of 231203411131023 in words is "two hundred thirty-one trillion, two hundred three billion, four hundred eleven million, one hundred thirty-one thousand, twenty-three".