131000521133 has 4 divisors (see below), whose sum is σ = 131034020448. Its totient is φ = 130967021820.

The previous prime is 131000521123. The next prime is 131000521139. The reversal of 131000521133 is 331125000131.

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 131000521133 - 2⁸ = 131000520877 is a prime.

It is a super-2 number, since 2×131000521133² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131000521139) 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, 16743791 + ... + 16751612.

It is an arithmetic number, because the mean of its divisors is an integer number (32758505112).

Almost surely, 2^131000521133 is an apocalyptic number.

It is an amenable number.

131000521133 is a deficient number, since it is larger than the sum of its proper divisors (33499315).

131000521133 is an equidigital number, since it uses as much as digits as its factorization.

131000521133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33499314.

The product of its (nonzero) digits is 270, while the sum is 20.

Adding to 131000521133 its reverse (331125000131), we get a palindrome (462125521264).

The spelling of 131000521133 in words is "one hundred thirty-one billion, five hundred twenty-one thousand, one hundred thirty-three".