131230203321 has 32 divisors (see below), whose sum is σ = 202679866368. Its totient is φ = 73975112640.

The previous prime is 131230203283. The next prime is 131230203323. The reversal of 131230203321 is 123302032131.

It is not a de Polignac number, because 131230203321 - 2⁷ = 131230203193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (131230203323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1124406 + ... + 1235616.

It is an arithmetic number, because the mean of its divisors is an integer number (6333745824).

Almost surely, 2^131230203321 is an apocalyptic number.

It is an amenable number.

131230203321 is a deficient number, since it is larger than the sum of its proper divisors (71449663047).

131230203321 is a wasteful number, since it uses less digits than its factorization.

131230203321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111981.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 131230203321 its reverse (123302032131), we get a palindrome (254532235452).

The spelling of 131230203321 in words is "one hundred thirty-one billion, two hundred thirty million, two hundred three thousand, three hundred twenty-one".