401232121142552 has 16 divisors (see below), whose sum is σ = 859783116734160. Its totient is φ = 171956623346784.

The previous prime is 401232121142551. The next prime is 401232121142639. The reversal of 401232121142552 is 255241121232104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401232121142551) 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 3 ways as a sum of consecutive naturals, for example, 3582429653003 + ... + 3582429653114.

It is an arithmetic number, because the mean of its divisors is an integer number (53736444795885).

Almost surely, 2^{401232121142552} is an apocalyptic number.

It is an amenable number.

401232121142552 is an abundant number, since it is smaller than the sum of its proper divisors (458550995591608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

401232121142552 is a wasteful number, since it uses less digits than its factorization.

401232121142552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7164859306130 (or 7164859306126 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 35.

Adding to 401232121142552 its reverse (255241121232104), we get a palindrome (656473242374656).

The spelling of 401232121142552 in words is "four hundred one trillion, two hundred thirty-two billion, one hundred twenty-one million, one hundred forty-two thousand, five hundred fifty-two".