401111531044 has 12 divisors (see below), whose sum is σ = 802223062144. Its totient is φ = 171904941864.

The previous prime is 401111530951. The next prime is 401111531053. The reversal of 401111531044 is 440135111104.

401111531044 is an admirable 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, 7162705884 + ... + 7162705939.

Almost surely, 2^401111531044 is an apocalyptic number.

It is an amenable number.

401111531044 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

401111531044 is a wasteful number, since it uses less digits than its factorization.

401111531044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14325411834 (or 14325411832 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

Adding to 401111531044 its reverse (440135111104), we get a palindrome (841246642148).

The spelling of 401111531044 in words is "four hundred one billion, one hundred eleven million, five hundred thirty-one thousand, forty-four".