131040233021 has 4 divisors (see below), whose sum is σ = 135267337344. Its totient is φ = 126813128700.

The previous prime is 131040232979. The next prime is 131040233089. The reversal of 131040233021 is 120332040131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131040233021 - 2⁶ = 131040232957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131040232984 and 131040233002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131040233321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2113552115 + ... + 2113552176.

It is an arithmetic number, because the mean of its divisors is an integer number (33816834336).

Almost surely, 2^131040233021 is an apocalyptic number.

It is an amenable number.

131040233021 is a deficient number, since it is larger than the sum of its proper divisors (4227104323).

131040233021 is an equidigital number, since it uses as much as digits as its factorization.

131040233021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4227104322.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 131040233021 its reverse (120332040131), we get a palindrome (251372273152).

The spelling of 131040233021 in words is "one hundred thirty-one billion, forty million, two hundred thirty-three thousand, twenty-one".