401023101 has 32 divisors (see below), whose sum is σ = 592727040. Its totient is φ = 240033024.

The previous prime is 401023097. The next prime is 401023109. The reversal of 401023101 is 101320104.

It is a happy number.

It is not a de Polignac number, because 401023101 - 2² = 401023097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401023109) 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 31 ways as a sum of consecutive naturals, for example, 146790 + ... + 149496.

It is an arithmetic number, because the mean of its divisors is an integer number (18522720).

Almost surely, 2^401023101 is an apocalyptic number.

It is an amenable number.

401023101 is a deficient number, since it is larger than the sum of its proper divisors (191703939).

401023101 is a wasteful number, since it uses less digits than its factorization.

401023101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2865.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 401023101 is about 20025.5611906383. The cubic root of 401023101 is about 737.4339542886.

Adding to 401023101 its reverse (101320104), we get a palindrome (502343205).

The spelling of 401023101 in words is "four hundred one million, twenty-three thousand, one hundred one".