131214432431 has 4 divisors (see below), whose sum is σ = 131247714192. Its totient is φ = 131181150672.

The previous prime is 131214432373. The next prime is 131214432469. The reversal of 131214432431 is 134234412131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131214432431 - 2¹⁸ = 131214170287 is a prime.

It is a super-2 number, since 2×131214432431² (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 = 131214432394 and 131214432403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131214432031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16634966 + ... + 16642851.

It is an arithmetic number, because the mean of its divisors is an integer number (32811928548).

Almost surely, 2^131214432431 is an apocalyptic number.

131214432431 is a deficient number, since it is larger than the sum of its proper divisors (33281761).

131214432431 is an equidigital number, since it uses as much as digits as its factorization.

131214432431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33281760.

The product of its digits is 6912, while the sum is 29.

Adding to 131214432431 its reverse (134234412131), we get a palindrome (265448844562).

The spelling of 131214432431 in words is "one hundred thirty-one billion, two hundred fourteen million, four hundred thirty-two thousand, four hundred thirty-one".