401123331444 has 48 divisors (see below), whose sum is σ = 1021082872320. Its totient is φ = 121547564640.

The previous prime is 401123331443. The next prime is 401123331463. The reversal of 401123331444 is 444133321104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401123331443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4393047 + ... + 4483425.

It is an arithmetic number, because the mean of its divisors is an integer number (21272559840).

Almost surely, 2^401123331444 is an apocalyptic number.

401123331444 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

401123331444 is an abundant number, since it is smaller than the sum of its proper divisors (619959540876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

401123331444 is a wasteful number, since it uses less digits than its factorization.

401123331444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124020 (or 124018 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 401123331444 its reverse (444133321104), we get a palindrome (845256652548).

The spelling of 401123331444 in words is "four hundred one billion, one hundred twenty-three million, three hundred thirty-one thousand, four hundred forty-four".