401111323040 has 48 divisors (see below), whose sum is σ = 951148374120. Its totient is φ = 159848064000.

The previous prime is 401111323033. The next prime is 401111323051. The reversal of 401111323040 is 40323111104.

It can be written as a sum of positive squares in 4 ways, for example, as 264060321424 + 137051001616 = 513868^2 + 370204^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4616711 + ... + 4702790.

Almost surely, 2^401111323040 is an apocalyptic number.

401111323040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

401111323040 is an abundant number, since it is smaller than the sum of its proper divisors (550037051080).

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

401111323040 is a wasteful number, since it uses less digits than its factorization.

401111323040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9319785 (or 9319777 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 401111323040 its reverse (40323111104), we get a palindrome (441434434144).

The spelling of 401111323040 in words is "four hundred one billion, one hundred eleven million, three hundred twenty-three thousand, forty".