212431103431432 has 64 divisors (see below), whose sum is σ = 422589456576000. Its totient is φ = 99832129634304.

The previous prime is 212431103431403. The next prime is 212431103431439. The reversal of 212431103431432 is 234134301134212.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (212431103431439) 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, 763257 + ... + 20626312.

It is an arithmetic number, because the mean of its divisors is an integer number (6602960259000).

Almost surely, 2^{212431103431432} is an apocalyptic number.

It is an amenable number.

212431103431432 is a deficient number, since it is larger than the sum of its proper divisors (210158353144568).

212431103431432 is a wasteful number, since it uses less digits than its factorization.

212431103431432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21390110 (or 21390106 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 34.

Adding to 212431103431432 its reverse (234134301134212), we get a palindrome (446565404565644).

The spelling of 212431103431432 in words is "two hundred twelve trillion, four hundred thirty-one billion, one hundred three million, four hundred thirty-one thousand, four hundred thirty-two".