431122141220242 has 4 divisors (see below), whose sum is σ = 646683211830366. Its totient is φ = 215561070610120.

The previous prime is 431122141220213. The next prime is 431122141220269. The reversal of 431122141220242 is 242022141221134.

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., 232650988915801 + 198471152304441 = 15252901^2 + 14087979^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107780535305059 + ... + 107780535305062.

Almost surely, 2^{431122141220242} is an apocalyptic number.

431122141220242 is a deficient number, since it is larger than the sum of its proper divisors (215561070610124).

431122141220242 is a wasteful number, since it uses less digits than its factorization.

431122141220242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215561070610123.

The product of its (nonzero) digits is 12288, while the sum is 31.

Adding to 431122141220242 its reverse (242022141221134), we get a palindrome (673144282441376).

The spelling of 431122141220242 in words is "four hundred thirty-one trillion, one hundred twenty-two billion, one hundred forty-one million, two hundred twenty thousand, two hundred forty-two".