131021232142443 has 8 divisors (see below), whose sum is σ = 182290409937408. Its totient is φ = 83549771221224.

The previous prime is 131021232142369. The next prime is 131021232142459. The reversal of 131021232142443 is 344241232120131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131021232142443 - 2¹² = 131021232138347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131021232142043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 949429218355 + ... + 949429218492.

It is an arithmetic number, because the mean of its divisors is an integer number (22786301242176).

Almost surely, 2^{131021232142443} is an apocalyptic number.

131021232142443 is a deficient number, since it is larger than the sum of its proper divisors (51269177794965).

131021232142443 is a wasteful number, since it uses less digits than its factorization.

131021232142443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1898858436873.

The product of its (nonzero) digits is 27648, while the sum is 33.

Adding to 131021232142443 its reverse (344241232120131), we get a palindrome (475262464262574).

The spelling of 131021232142443 in words is "one hundred thirty-one trillion, twenty-one billion, two hundred thirty-two million, one hundred forty-two thousand, four hundred forty-three".