131042433431 has 32 divisors (see below), whose sum is σ = 162568896000. Its totient is φ = 102857040000.

The previous prime is 131042433397. The next prime is 131042433443. The reversal of 131042433431 is 134334240131.

It is a happy number.

It is not a de Polignac number, because 131042433431 - 2¹⁰ = 131042432407 is a prime.

It is a super-2 number, since 2×131042433431² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131042433394 and 131042433403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131042433491) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11641556 + ... + 11652806.

It is an arithmetic number, because the mean of its divisors is an integer number (5080278000).

Almost surely, 2^131042433431 is an apocalyptic number.

131042433431 is a deficient number, since it is larger than the sum of its proper divisors (31526462569).

131042433431 is a wasteful number, since it uses less digits than its factorization.

131042433431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12279.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 131042433431 its reverse (134334240131), we get a palindrome (265376673562).

The spelling of 131042433431 in words is "one hundred thirty-one billion, forty-two million, four hundred thirty-three thousand, four hundred thirty-one".