2131422432442 has 16 divisors (see below), whose sum is σ = 3199841057952. Its totient is φ = 1064808997200.

The previous prime is 2131422432409. The next prime is 2131422432449. The reversal of 2131422432442 is 2442342241312.

It is a junction number, because it is equal to n+sod(n) for n = 2131422432398 and 2131422432407.

It is not an unprimeable number, because it can be changed into a prime (2131422432449) 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, 18036673 + ... + 18154459.

It is an arithmetic number, because the mean of its divisors is an integer number (199990066122).

Almost surely, 2^{2131422432442} is an apocalyptic number.

2131422432442 is a deficient number, since it is larger than the sum of its proper divisors (1068418625510).

2131422432442 is a wasteful number, since it uses less digits than its factorization.

2131422432442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125373.

The product of its digits is 73728, while the sum is 34.

Adding to 2131422432442 its reverse (2442342241312), we get a palindrome (4573764673754).

The spelling of 2131422432442 in words is "two trillion, one hundred thirty-one billion, four hundred twenty-two million, four hundred thirty-two thousand, four hundred forty-two".