131433511441 has 4 divisors (see below), whose sum is σ = 134639206884. Its totient is φ = 128227816000.

The previous prime is 131433511423. The next prime is 131433511487. The reversal of 131433511441 is 144115334131.

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 26146890000 + 105286621441 = 161700^2 + 324479^2 .

It is a cyclic number.

It is not a de Polignac number, because 131433511441 - 2¹¹ = 131433509393 is a prime.

It is a super-2 number, since 2×131433511441² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131433511411) 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, 1602847660 + ... + 1602847741.

It is an arithmetic number, because the mean of its divisors is an integer number (33659801721).

Almost surely, 2^131433511441 is an apocalyptic number.

It is an amenable number.

131433511441 is a deficient number, since it is larger than the sum of its proper divisors (3205695443).

131433511441 is an equidigital number, since it uses as much as digits as its factorization.

131433511441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3205695442.

The product of its digits is 8640, while the sum is 31.

Adding to 131433511441 its reverse (144115334131), we get a palindrome (275548845572).

The spelling of 131433511441 in words is "one hundred thirty-one billion, four hundred thirty-three million, five hundred eleven thousand, four hundred forty-one".