1431441321242 has 4 divisors (see below), whose sum is σ = 2147161981866. Its totient is φ = 715720660620.

The previous prime is 1431441321197. The next prime is 1431441321263. The reversal of 1431441321242 is 2421231441341.

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

It can be written as a sum of positive squares in only one way, i.e., 1045242461641 + 386198859601 = 1022371^2 + 621449^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1431441321199 and 1431441321208.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 357860330309 + ... + 357860330312.

Almost surely, 2^{1431441321242} is an apocalyptic number.

1431441321242 is a deficient number, since it is larger than the sum of its proper divisors (715720660624).

1431441321242 is an equidigital number, since it uses as much as digits as its factorization.

1431441321242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715720660623.

The product of its digits is 18432, while the sum is 32.

Adding to 1431441321242 its reverse (2421231441341), we get a palindrome (3852672762583).

The spelling of 1431441321242 in words is "one trillion, four hundred thirty-one billion, four hundred forty-one million, three hundred twenty-one thousand, two hundred forty-two".