405235561013231 has 32 divisors (see below), whose sum is σ = 475227289656000. Its totient is φ = 342148699081728.

The previous prime is 405235561013147. The next prime is 405235561013233. The reversal of 405235561013231 is 132310165532504.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-405235561013231 is a prime.

It is a super-2 number, since 2×405235561013231² (a number of 30 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 (405235561013233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 340429121 + ... + 341617413.

It is an arithmetic number, because the mean of its divisors is an integer number (14850852801750).

Almost surely, 2^{405235561013231} is an apocalyptic number.

405235561013231 is a deficient number, since it is larger than the sum of its proper divisors (69991728642769).

405235561013231 is a wasteful number, since it uses less digits than its factorization.

405235561013231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1235963.

The product of its (nonzero) digits is 324000, while the sum is 41.

The spelling of 405235561013231 in words is "four hundred five trillion, two hundred thirty-five billion, five hundred sixty-one million, thirteen thousand, two hundred thirty-one".