431433033121 has 4 divisors (see below), whose sum is σ = 456811446852. Its totient is φ = 406054619392.

The previous prime is 431433033091. The next prime is 431433033137. The reversal of 431433033121 is 121330334134.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 121330334134 = 2 ⋅60665167067.

It can be written as a sum of positive squares in 2 ways, for example, as 191371251600 + 240061781521 = 437460^2 + 489961^2 .

It is a cyclic number.

It is not a de Polignac number, because 431433033121 - 2¹⁹ = 431432508833 is a prime.

It is a super-2 number, since 2×431433033121² (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 431433033121.

It is not an unprimeable number, because it can be changed into a prime (431433037121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12689206840 + ... + 12689206873.

It is an arithmetic number, because the mean of its divisors is an integer number (114202861713).

Almost surely, 2^431433033121 is an apocalyptic number.

It is an amenable number.

431433033121 is a deficient number, since it is larger than the sum of its proper divisors (25378413731).

431433033121 is a wasteful number, since it uses less digits than its factorization.

431433033121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25378413730.

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

Adding to 431433033121 its reverse (121330334134), we get a palindrome (552763367255).

The spelling of 431433033121 in words is "four hundred thirty-one billion, four hundred thirty-three million, thirty-three thousand, one hundred twenty-one".