401033121 has 16 divisors (see below), whose sum is σ = 551187264. Its totient is φ = 259170624.

The previous prime is 401033119. The next prime is 401033137. The reversal of 401033121 is 121330104.

It is not a de Polignac number, because 401033121 - 2¹ = 401033119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 401033121.

It is not an unprimeable number, because it can be changed into a prime (401033821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24226 + ... + 37268.

It is an arithmetic number, because the mean of its divisors is an integer number (34449204).

Almost surely, 2^401033121 is an apocalyptic number.

It is an amenable number.

401033121 is a deficient number, since it is larger than the sum of its proper divisors (150154143).

401033121 is a wasteful number, since it uses less digits than its factorization.

401033121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13360.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 401033121 is about 20025.8113693303. The cubic root of 401033121 is about 737.4400961016.

Adding to 401033121 its reverse (121330104), we get a palindrome (522363225).

The spelling of 401033121 in words is "four hundred one million, thirty-three thousand, one hundred twenty-one".