461223530343431 has 4 divisors (see below), whose sum is σ = 461289807621600. Its totient is φ = 461157253065264.

The previous prime is 461223530343409. The next prime is 461223530343517. The reversal of 461223530343431 is 134343035322164.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-461223530343431 is a prime.

It is a super-2 number, since 2×461223530343431² (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 (461223530343031) 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, 33138628646 + ... + 33138642563.

It is an arithmetic number, because the mean of its divisors is an integer number (115322451905400).

Almost surely, 2^{461223530343431} is an apocalyptic number.

461223530343431 is a deficient number, since it is larger than the sum of its proper divisors (66277278169).

461223530343431 is an equidigital number, since it uses as much as digits as its factorization.

461223530343431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66277278168.

The product of its (nonzero) digits is 1866240, while the sum is 44.

Adding to 461223530343431 its reverse (134343035322164), we get a palindrome (595566565665595).

The spelling of 461223530343431 in words is "four hundred sixty-one trillion, two hundred twenty-three billion, five hundred thirty million, three hundred forty-three thousand, four hundred thirty-one".