401321101 has 2 divisors, whose sum is σ = 401321102. Its totient is φ = 401321100.

The previous prime is 401321093. The next prime is 401321113. The reversal of 401321101 is 101123104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 222457225 + 178863876 = 14915^2 + 13374^2 .

It is a cyclic number.

It is not a de Polignac number, because 401321101 - 2³ = 401321093 is a prime.

It is a super-2 number, since 2×401321101² = 322117252215704402, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401321131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200660550 + 200660551.

It is an arithmetic number, because the mean of its divisors is an integer number (200660551).

Almost surely, 2^401321101 is an apocalyptic number.

It is an amenable number.

401321101 is a deficient number, since it is larger than the sum of its proper divisors (1).

401321101 is an equidigital number, since it uses as much as digits as its factorization.

401321101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 401321101 is about 20033.0002995058. Note that the first 3 decimals coincide. The cubic root of 401321101 is about 737.6165712890.

Adding to 401321101 its reverse (101123104), we get a palindrome (502444205).

The spelling of 401321101 in words is "four hundred one million, three hundred twenty-one thousand, one hundred one".