401331431422 has 8 divisors (see below), whose sum is σ = 614805597216. Its totient is φ = 196396232352.

The previous prime is 401331431407. The next prime is 401331431447. The reversal of 401331431422 is 224134133104.

It is a happy number.

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

It is a super-2 number, since 2×401331431422² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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, 2134741563 + ... + 2134741750.

It is an arithmetic number, because the mean of its divisors is an integer number (76850699652).

Almost surely, 2^401331431422 is an apocalyptic number.

401331431422 is a deficient number, since it is larger than the sum of its proper divisors (213474165794).

401331431422 is a wasteful number, since it uses less digits than its factorization.

401331431422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4269483362.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 401331431422 its reverse (224134133104), we get a palindrome (625465564526).

The spelling of 401331431422 in words is "four hundred one billion, three hundred thirty-one million, four hundred thirty-one thousand, four hundred twenty-two".