431430133231 has 4 divisors (see below), whose sum is σ = 431431991464. Its totient is φ = 431428275000.

The previous prime is 431430133097. The next prime is 431430133241. The reversal of 431430133231 is 132331034134.

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 431430133231 - 2¹³ = 431430125039 is a prime.

It is a super-2 number, since 2×431430133231² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 431430133231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431430133241) 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, 521145 + ... + 1065106.

It is an arithmetic number, because the mean of its divisors is an integer number (107857997866).

Almost surely, 2^431430133231 is an apocalyptic number.

431430133231 is a deficient number, since it is larger than the sum of its proper divisors (1858233).

431430133231 is a wasteful number, since it uses less digits than its factorization.

431430133231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1858232.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 431430133231 its reverse (132331034134), we get a palindrome (563761167365).

The spelling of 431430133231 in words is "four hundred thirty-one billion, four hundred thirty million, one hundred thirty-three thousand, two hundred thirty-one".