400203243122 has 8 divisors (see below), whose sum is σ = 600550194816. Its totient is φ = 200019844852.

The previous prime is 400203243107. The next prime is 400203243169. The reversal of 400203243122 is 221342302004.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40882238 + ... + 40892025.

It is an arithmetic number, because the mean of its divisors is an integer number (75068774352).

Almost surely, 2^400203243122 is an apocalyptic number.

400203243122 is a deficient number, since it is larger than the sum of its proper divisors (200346951694).

400203243122 is a wasteful number, since it uses less digits than its factorization.

400203243122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81776712.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 400203243122 its reverse (221342302004), we get a palindrome (621545545126).

The spelling of 400203243122 in words is "four hundred billion, two hundred three million, two hundred forty-three thousand, one hundred twenty-two".