131133230431 has 16 divisors (see below), whose sum is σ = 153981412416. Its totient is φ = 109316307456.

The previous prime is 131133230407. The next prime is 131133230453. The reversal of 131133230431 is 134032331131.

It is a cyclic number.

It is not a de Polignac number, because 131133230431 - 2²³ = 131124841823 is a prime.

It is a super-2 number, since 2×131133230431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131133230396 and 131133230405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131133230401) 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 15 ways as a sum of consecutive naturals, for example, 521265 + ... + 730741.

It is an arithmetic number, because the mean of its divisors is an integer number (9623838276).

Almost surely, 2^131133230431 is an apocalyptic number.

131133230431 is a deficient number, since it is larger than the sum of its proper divisors (22848181985).

131133230431 is a wasteful number, since it uses less digits than its factorization.

131133230431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211938.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 131133230431 its reverse (134032331131), we get a palindrome (265165561562).

The spelling of 131133230431 in words is "one hundred thirty-one billion, one hundred thirty-three million, two hundred thirty thousand, four hundred thirty-one".