400203424023 has 8 divisors (see below), whose sum is σ = 574651070448. Its totient is φ = 246279030144.

The previous prime is 400203424007. The next prime is 400203424031. The reversal of 400203424023 is 320424302004.

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

It is not a de Polignac number, because 400203424023 - 2⁴ = 400203424007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 400203423984 and 400203424002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400203474023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5130813090 + ... + 5130813167.

It is an arithmetic number, because the mean of its divisors is an integer number (71831383806).

Almost surely, 2^400203424023 is an apocalyptic number.

400203424023 is a deficient number, since it is larger than the sum of its proper divisors (174447646425).

400203424023 is a wasteful number, since it uses less digits than its factorization.

400203424023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10261626273.

The product of its (nonzero) digits is 4608, while the sum is 24.

Adding to 400203424023 its reverse (320424302004), we get a palindrome (720627726027).

The spelling of 400203424023 in words is "four hundred billion, two hundred three million, four hundred twenty-four thousand, twenty-three".