461323135631 has 4 divisors (see below), whose sum is σ = 461792437872. Its totient is φ = 460853833392.

The previous prime is 461323135613. The next prime is 461323135639. The reversal of 461323135631 is 136531323164.

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 461323135631 - 2²⁶ = 461256026767 is a prime.

It is a super-3 number, since 3×461323135631³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (461323135639) 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, 234649646 + ... + 234651611.

It is an arithmetic number, because the mean of its divisors is an integer number (115448109468).

Almost surely, 2^461323135631 is an apocalyptic number.

461323135631 is a deficient number, since it is larger than the sum of its proper divisors (469302241).

461323135631 is an equidigital number, since it uses as much as digits as its factorization.

461323135631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469302240.

The product of its digits is 116640, while the sum is 38.

Adding to 461323135631 its reverse (136531323164), we get a palindrome (597854458795).

The spelling of 461323135631 in words is "four hundred sixty-one billion, three hundred twenty-three million, one hundred thirty-five thousand, six hundred thirty-one".