401302042414421 has 4 divisors (see below), whose sum is σ = 402195810883500. Its totient is φ = 400408273945344.

The previous prime is 401302042414289. The next prime is 401302042414487. The reversal of 401302042414421 is 124414240203104.

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

It can be written as a sum of positive squares in 2 ways, for example, as 307091452200625 + 94210590213796 = 17524025^2 + 9706214^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401302042414421 is a prime.

It is a super-2 number, since 2×401302042414421² (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 (401302042413421) 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, 446884233866 + ... + 446884234763.

It is an arithmetic number, because the mean of its divisors is an integer number (100548952720875).

Almost surely, 2^{401302042414421} is an apocalyptic number.

It is an amenable number.

401302042414421 is a deficient number, since it is larger than the sum of its proper divisors (893768469079).

401302042414421 is an equidigital number, since it uses as much as digits as its factorization.

401302042414421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 893768469078.

The product of its (nonzero) digits is 24576, while the sum is 32.

Adding to 401302042414421 its reverse (124414240203104), we get a palindrome (525716282617525).

The spelling of 401302042414421 in words is "four hundred one trillion, three hundred two billion, forty-two million, four hundred fourteen thousand, four hundred twenty-one".