431442431123 has 16 divisors (see below), whose sum is σ = 473372055936. Its totient is φ = 389966384640.

The previous prime is 431442431117. The next prime is 431442431141. The reversal of 431442431123 is 321134244134.

It is a cyclic number.

It is not a de Polignac number, because 431442431123 - 2⁴ = 431442431107 is a prime.

It is a super-2 number, since 2×431442431123² (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 431442431123.

It is not an unprimeable number, because it can be changed into a prime (431442431153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3736940 + ... + 3850662.

It is an arithmetic number, because the mean of its divisors is an integer number (29585753496).

Almost surely, 2^431442431123 is an apocalyptic number.

431442431123 is a deficient number, since it is larger than the sum of its proper divisors (41929624813).

431442431123 is a wasteful number, since it uses less digits than its factorization.

431442431123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115714.

The product of its digits is 27648, while the sum is 32.

Adding to 431442431123 its reverse (321134244134), we get a palindrome (752576675257).

The spelling of 431442431123 in words is "four hundred thirty-one billion, four hundred forty-two million, four hundred thirty-one thousand, one hundred twenty-three".