401145243132 has 24 divisors (see below), whose sum is σ = 940022765136. Its totient is φ = 133141195648.

The previous prime is 401145242923. The next prime is 401145243137. The reversal of 401145243132 is 231342541104.

It is a self number, because there is not a number n which added to its sum of digits gives 401145243132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401145243137) 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 7 ways as a sum of consecutive naturals, for example, 71732763 + ... + 71738354.

It is an arithmetic number, because the mean of its divisors is an integer number (39167615214).

Almost surely, 2^401145243132 is an apocalyptic number.

It is an amenable number.

401145243132 is an abundant number, since it is smaller than the sum of its proper divisors (538877522004).

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

401145243132 is a wasteful number, since it uses less digits than its factorization.

401145243132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143471357 (or 143471355 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 401145243132 its reverse (231342541104), we get a palindrome (632487784236).

The spelling of 401145243132 in words is "four hundred one billion, one hundred forty-five million, two hundred forty-three thousand, one hundred thirty-two".