401235341055511 has 32 divisors (see below), whose sum is σ = 414618694783488. Its totient is φ = 388117490112000.

The previous prime is 401235341055491. The next prime is 401235341055553. The reversal of 401235341055511 is 115550143532104.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401235341055511 is a prime.

It is a super-2 number, since 2×401235341055511² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401235341055011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18446742886 + ... + 18446764636.

It is an arithmetic number, because the mean of its divisors is an integer number (12956834211984).

Almost surely, 2^{401235341055511} is an apocalyptic number.

401235341055511 is a deficient number, since it is larger than the sum of its proper divisors (13383353727977).

401235341055511 is a wasteful number, since it uses less digits than its factorization.

401235341055511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38311.

The product of its (nonzero) digits is 180000, while the sum is 40.

Adding to 401235341055511 its reverse (115550143532104), we get a palindrome (516785484587615).

The spelling of 401235341055511 in words is "four hundred one trillion, two hundred thirty-five billion, three hundred forty-one million, fifty-five thousand, five hundred eleven".