401140510531 has 16 divisors (see below), whose sum is σ = 432625808160. Its totient is φ = 370695640320.

The previous prime is 401140510471. The next prime is 401140510541. The reversal of 401140510531 is 135015041104.

It is a cyclic number.

It is not a de Polignac number, because 401140510531 - 2⁷ = 401140510403 is a prime.

It is a super-2 number, since 2×401140510531² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 401140510496 and 401140510505.

It is not an unprimeable number, because it can be changed into a prime (401140510541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4880185 + ... + 4961701.

It is an arithmetic number, because the mean of its divisors is an integer number (27039113010).

Almost surely, 2^401140510531 is an apocalyptic number.

401140510531 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

401140510531 is a deficient number, since it is larger than the sum of its proper divisors (31485297629).

401140510531 is a wasteful number, since it uses less digits than its factorization.

401140510531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87894.

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 401140510531 its reverse (135015041104), we get a palindrome (536155551635).

The spelling of 401140510531 in words is "four hundred one billion, one hundred forty million, five hundred ten thousand, five hundred thirty-one".