401340031311011 has 4 divisors (see below), whose sum is σ = 432212341411872. Its totient is φ = 370467721210152.

The previous prime is 401340031311007. The next prime is 401340031311019. The reversal of 401340031311011 is 110113130043104.

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

It is a cyclic number.

It is not a de Polignac number, because 401340031311011 - 2² = 401340031311007 is a prime.

It is a super-2 number, since 2×401340031311011² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401340031311019) 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, 15436155050411 + ... + 15436155050436.

It is an arithmetic number, because the mean of its divisors is an integer number (108053085352968).

Almost surely, 2^{401340031311011} is an apocalyptic number.

401340031311011 is a deficient number, since it is larger than the sum of its proper divisors (30872310100861).

401340031311011 is a wasteful number, since it uses less digits than its factorization.

401340031311011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30872310100860.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 401340031311011 its reverse (110113130043104), we get a palindrome (511453161354115).

The spelling of 401340031311011 in words is "four hundred one trillion, three hundred forty billion, thirty-one million, three hundred eleven thousand, eleven".