212122040323431 has 8 divisors (see below), whose sum is σ = 323233585254784. Its totient is φ = 121212594470520.

The previous prime is 212122040323393. The next prime is 212122040323439. The reversal of 212122040323431 is 134323040221212.

It is a happy number.

212122040323431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212122040323431 - 2¹¹ = 212122040321383 is a prime.

It is a super-2 number, since 2×212122040323431² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212122040323439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5050524769585 + ... + 5050524769626.

It is an arithmetic number, because the mean of its divisors is an integer number (40404198156848).

Almost surely, 2^{212122040323431} is an apocalyptic number.

212122040323431 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

212122040323431 is a deficient number, since it is larger than the sum of its proper divisors (111111544931353).

212122040323431 is a wasteful number, since it uses less digits than its factorization.

212122040323431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10101049539221.

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 212122040323431 its reverse (134323040221212), we get a palindrome (346445080544643).

The spelling of 212122040323431 in words is "two hundred twelve trillion, one hundred twenty-two billion, forty million, three hundred twenty-three thousand, four hundred thirty-one".