431401121212 has 12 divisors (see below), whose sum is σ = 756753759720. Its totient is φ = 215185761296.

The previous prime is 431401121209. The next prime is 431401121213. The reversal of 431401121212 is 212121104134.

It is a super-2 number, since 2×431401121212² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431401121213) 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, 128697943 + ... + 128701294.

It is an arithmetic number, because the mean of its divisors is an integer number (63062813310).

Almost surely, 2^431401121212 is an apocalyptic number.

It is an amenable number.

431401121212 is a deficient number, since it is larger than the sum of its proper divisors (325352638508).

431401121212 is a wasteful number, since it uses less digits than its factorization.

431401121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257399660 (or 257399658 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 431401121212 its reverse (212121104134), we get a palindrome (643522225346).

The spelling of 431401121212 in words is "four hundred thirty-one billion, four hundred one million, one hundred twenty-one thousand, two hundred twelve".