1423520221426 has 8 divisors (see below), whose sum is σ = 2192990611500. Its totient is φ = 692523350928.

The previous prime is 1423520221399. The next prime is 1423520221429. The reversal of 1423520221426 is 6241220253241.

It can be written as a sum of positive squares in 2 ways, for example, as 1192496760225 + 231023461201 = 1092015^2 + 480649^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1423520221391 and 1423520221400.

It is not an unprimeable number, because it can be changed into a prime (1423520221429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9618379801 + ... + 9618379948.

Almost surely, 2^{1423520221426} is an apocalyptic number.

1423520221426 is a deficient number, since it is larger than the sum of its proper divisors (769470390074).

1423520221426 is a wasteful number, since it uses less digits than its factorization.

1423520221426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19236759788.

The product of its (nonzero) digits is 46080, while the sum is 34.

Adding to 1423520221426 its reverse (6241220253241), we get a palindrome (7664740474667).

The spelling of 1423520221426 in words is "one trillion, four hundred twenty-three billion, five hundred twenty million, two hundred twenty-one thousand, four hundred twenty-six".