401012315023 has 4 divisors (see below), whose sum is σ = 422118226360. Its totient is φ = 379906403688.

The previous prime is 401012315021. The next prime is 401012315057. The reversal of 401012315023 is 320513210104.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 401012315023 - 2¹ = 401012315021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 401012314985 and 401012315003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401012315021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10552955640 + ... + 10552955677.

It is an arithmetic number, because the mean of its divisors is an integer number (105529556590).

Almost surely, 2^401012315023 is an apocalyptic number.

401012315023 is a deficient number, since it is larger than the sum of its proper divisors (21105911337).

401012315023 is a wasteful number, since it uses less digits than its factorization.

401012315023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21105911336.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 401012315023 its reverse (320513210104), we get a palindrome (721525525127).

The spelling of 401012315023 in words is "four hundred one billion, twelve million, three hundred fifteen thousand, twenty-three".