401223147031 has 16 divisors (see below), whose sum is σ = 459334366720. Its totient is φ = 343310568480.

The previous prime is 401223147007. The next prime is 401223147049. The reversal of 401223147031 is 130741322104.

It is a cyclic number.

It is not a de Polignac number, because 401223147031 - 2¹⁹ = 401222622743 is a prime.

It is a super-2 number, since 2×401223147031² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401223147071) 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, 36672760 + ... + 36683698.

It is an arithmetic number, because the mean of its divisors is an integer number (28708397920).

Almost surely, 2^401223147031 is an apocalyptic number.

401223147031 is a deficient number, since it is larger than the sum of its proper divisors (58111219689).

401223147031 is a wasteful number, since it uses less digits than its factorization.

401223147031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19534.

The product of its (nonzero) digits is 4032, while the sum is 28.

Adding to 401223147031 its reverse (130741322104), we get a palindrome (531964469135).

The spelling of 401223147031 in words is "four hundred one billion, two hundred twenty-three million, one hundred forty-seven thousand, thirty-one".