1254304421042 has 4 divisors (see below), whose sum is σ = 1881456631566. Its totient is φ = 627152210520.

The previous prime is 1254304420991. The next prime is 1254304421063. The reversal of 1254304421042 is 2401244034521.

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., 1246525357441 + 7779063601 = 1116479^2 + 88199^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313576105259 + ... + 313576105262.

Almost surely, 2^{1254304421042} is an apocalyptic number.

1254304421042 is a deficient number, since it is larger than the sum of its proper divisors (627152210524).

1254304421042 is an equidigital number, since it uses as much as digits as its factorization.

1254304421042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627152210523.

The product of its (nonzero) digits is 30720, while the sum is 32.

Adding to 1254304421042 its reverse (2401244034521), we get a palindrome (3655548455563).

The spelling of 1254304421042 in words is "one trillion, two hundred fifty-four billion, three hundred four million, four hundred twenty-one thousand, forty-two".