400211011443 has 4 divisors (see below), whose sum is σ = 533614681928. Its totient is φ = 266807340960.

The previous prime is 400211011429. The next prime is 400211011463. The reversal of 400211011443 is 344110112004.

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

It is not a de Polignac number, because 400211011443 - 2²² = 400206817139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400211011463) 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, 66701835238 + ... + 66701835243.

It is an arithmetic number, because the mean of its divisors is an integer number (133403670482).

Almost surely, 2^400211011443 is an apocalyptic number.

400211011443 is a deficient number, since it is larger than the sum of its proper divisors (133403670485).

400211011443 is a wasteful number, since it uses less digits than its factorization.

400211011443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133403670484.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 400211011443 its reverse (344110112004), we get a palindrome (744321123447).

The spelling of 400211011443 in words is "four hundred billion, two hundred eleven million, eleven thousand, four hundred forty-three".