401113511 has 2 divisors, whose sum is σ = 401113512. Its totient is φ = 401113510.

The previous prime is 401113469. The next prime is 401113549. The reversal of 401113511 is 115311104.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 401113511 - 2¹⁰ = 401112487 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 401113511.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401113571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200556755 + 200556756.

It is an arithmetic number, because the mean of its divisors is an integer number (200556756).

Almost surely, 2^401113511 is an apocalyptic number.

401113511 is a deficient number, since it is larger than the sum of its proper divisors (1).

401113511 is an equidigital number, since it uses as much as digits as its factorization.

401113511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60, while the sum is 17.

The square root of 401113511 is about 20027.8184283761. The cubic root of 401113511 is about 737.4893678827.

Adding to 401113511 its reverse (115311104), we get a palindrome (516424615).

The spelling of 401113511 in words is "four hundred one million, one hundred thirteen thousand, five hundred eleven".