212132443023431 has 16 divisors (see below), whose sum is σ = 246426280708608. Its totient is φ = 178836264741600.

The previous prime is 212132443023419. The next prime is 212132443023439. The reversal of 212132443023431 is 134320344231212.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 212132443023431 - 2⁶ = 212132443023367 is a prime.

It is a super-2 number, since 2×212132443023431² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212132443023391 and 212132443023400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212132443023439) 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, 7834445 + ... + 22037318.

It is an arithmetic number, because the mean of its divisors is an integer number (15401642544288).

Almost surely, 2^{212132443023431} is an apocalyptic number.

212132443023431 is a deficient number, since it is larger than the sum of its proper divisors (34293837685177).

212132443023431 is a wasteful number, since it uses less digits than its factorization.

212132443023431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29888462.

The product of its (nonzero) digits is 82944, while the sum is 35.

Adding to 212132443023431 its reverse (134320344231212), we get a palindrome (346452787254643).

The spelling of 212132443023431 in words is "two hundred twelve trillion, one hundred thirty-two billion, four hundred forty-three million, twenty-three thousand, four hundred thirty-one".