404251013245223 has 4 divisors (see below), whose sum is σ = 404294032411080. Its totient is φ = 404207994079368.

The previous prime is 404251013245169. The next prime is 404251013245237. The reversal of 404251013245223 is 322542310152404.

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

It is a cyclic number.

It is not a de Polignac number, because 404251013245223 - 2²⁸ = 404250744809767 is a prime.

It is a super-2 number, since 2×404251013245223² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404251013247223) 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, 21509568833 + ... + 21509587626.

It is an arithmetic number, because the mean of its divisors is an integer number (101073508102770).

Almost surely, 2^{404251013245223} is an apocalyptic number.

404251013245223 is a deficient number, since it is larger than the sum of its proper divisors (43019165857).

404251013245223 is an equidigital number, since it uses as much as digits as its factorization.

404251013245223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43019165856.

The product of its (nonzero) digits is 230400, while the sum is 38.

Adding to 404251013245223 its reverse (322542310152404), we get a palindrome (726793323397627).

The spelling of 404251013245223 in words is "four hundred four trillion, two hundred fifty-one billion, thirteen million, two hundred forty-five thousand, two hundred twenty-three".