1421741641723 has 8 divisors (see below), whose sum is σ = 1531674971568. Its totient is φ = 1311889538784.

The previous prime is 1421741641703. The next prime is 1421741641781. The reversal of 1421741641723 is 3271461471241.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1421741641723 - 2⁹ = 1421741641211 is a prime.

It is a super-2 number, since 2×1421741641723² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1421741641723.

It is not an unprimeable number, because it can be changed into a prime (1421741641703) 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, 20270365 + ... + 20340382.

It is an arithmetic number, because the mean of its divisors is an integer number (191459371446).

Almost surely, 2^{1421741641723} is an apocalyptic number.

1421741641723 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1421741641723 is a deficient number, since it is larger than the sum of its proper divisors (109933329845).

1421741641723 is a wasteful number, since it uses less digits than its factorization.

1421741641723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40613453.

The product of its digits is 225792, while the sum is 43.

The spelling of 1421741641723 in words is "one trillion, four hundred twenty-one billion, seven hundred forty-one million, six hundred forty-one thousand, seven hundred twenty-three".