1421071745042 has 4 divisors (see below), whose sum is σ = 2131607617566. Its totient is φ = 710535872520.

The previous prime is 1421071745033. The next prime is 1421071745059. The reversal of 1421071745042 is 2405471701241.

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., 999898002601 + 421173742441 = 999949^2 + 648979^2 .

It is a super-3 number, since 3×1421071745042³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1421071744987 and 1421071745005.

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, 355267936259 + ... + 355267936262.

Almost surely, 2^{1421071745042} is an apocalyptic number.

1421071745042 is a deficient number, since it is larger than the sum of its proper divisors (710535872524).

1421071745042 is an equidigital number, since it uses as much as digits as its factorization.

1421071745042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710535872523.

The product of its (nonzero) digits is 62720, while the sum is 38.

The spelling of 1421071745042 in words is "one trillion, four hundred twenty-one billion, seventy-one million, seven hundred forty-five thousand, forty-two".