401143042130121 has 64 divisors (see below), whose sum is σ = 629657467724800. Its totient is φ = 251696987947008.

The previous prime is 401143042130053. The next prime is 401143042130167. The reversal of 401143042130121 is 121031240341104.

It is a happy number.

401143042130121 is a `hidden beast` number, since 4 + 0 + 1 + 1 + 430 + 4 + 213 + 0 + 12 + 1 = 666.

It is not a de Polignac number, because 401143042130121 - 2¹⁰ = 401143042129097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401143042130821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 205315785 + ... + 207260361.

It is an arithmetic number, because the mean of its divisors is an integer number (9838397933200).

Almost surely, 2^{401143042130121} is an apocalyptic number.

It is an amenable number.

401143042130121 is a deficient number, since it is larger than the sum of its proper divisors (228514425594679).

401143042130121 is a wasteful number, since it uses less digits than its factorization.

401143042130121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1947235 (or 1947229 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 401143042130121 its reverse (121031240341104), we get a palindrome (522174282471225).

The spelling of 401143042130121 in words is "four hundred one trillion, one hundred forty-three billion, forty-two million, one hundred thirty thousand, one hundred twenty-one".