1423657234481 has 4 divisors (see below), whose sum is σ = 1443159388452. Its totient is φ = 1404155080512.

The previous prime is 1423657234459. The next prime is 1423657234499. The reversal of 1423657234481 is 1844327563241.

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

It can be written as a sum of positive squares in 2 ways, for example, as 352931046400 + 1070726188081 = 594080^2 + 1034759^2 .

It is a cyclic number.

It is not a de Polignac number, because 1423657234481 - 2¹⁰ = 1423657233457 is a prime.

It is a super-2 number, since 2×1423657234481² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1423657234381) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 9751076876 + ... + 9751077021.

It is an arithmetic number, because the mean of its divisors is an integer number (360789847113).

Almost surely, 2^{1423657234481} is an apocalyptic number.

It is an amenable number.

1423657234481 is a deficient number, since it is larger than the sum of its proper divisors (19502153971).

1423657234481 is an equidigital number, since it uses as much as digits as its factorization.

1423657234481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19502153970.

The product of its digits is 3870720, while the sum is 50.

The spelling of 1423657234481 in words is "one trillion, four hundred twenty-three billion, six hundred fifty-seven million, two hundred thirty-four thousand, four hundred eighty-one".