401125123 has 16 divisors (see below), whose sum is σ = 472120000. Its totient is φ = 340635456.

The previous prime is 401125121. The next prime is 401125133. The reversal of 401125123 is 321521104.

It is not a de Polignac number, because 401125123 - 2¹ = 401125121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 401125123.

It is not an unprimeable number, because it can be changed into a prime (401125121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32023 + ... + 42751.

It is an arithmetic number, because the mean of its divisors is an integer number (29507500).

Almost surely, 2^401125123 is an apocalyptic number.

401125123 is a deficient number, since it is larger than the sum of its proper divisors (70994877).

401125123 is a wasteful number, since it uses less digits than its factorization.

401125123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10859 (or 10845 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 401125123 is about 20028.1083230544. The cubic root of 401125123 is about 737.4964844417.

Adding to 401125123 its reverse (321521104), we get a palindrome (722646227).

The spelling of 401125123 in words is "four hundred one million, one hundred twenty-five thousand, one hundred twenty-three".