401111345321 has 4 divisors (see below), whose sum is σ = 409645629312. Its totient is φ = 392577061332.

The previous prime is 401111345311. The next prime is 401111345351. The reversal of 401111345321 is 123543111104.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401111345321 is a prime.

It is a super-2 number, since 2×401111345321² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401111345311) 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, 4267141925 + ... + 4267142018.

It is an arithmetic number, because the mean of its divisors is an integer number (102411407328).

Almost surely, 2^401111345321 is an apocalyptic number.

It is an amenable number.

401111345321 is a deficient number, since it is larger than the sum of its proper divisors (8534283991).

401111345321 is an equidigital number, since it uses as much as digits as its factorization.

401111345321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8534283990.

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 401111345321 its reverse (123543111104), we get a palindrome (524654456425).

The spelling of 401111345321 in words is "four hundred one billion, one hundred eleven million, three hundred forty-five thousand, three hundred twenty-one".