212313450454 has 16 divisors (see below), whose sum is σ = 364100832000. Its totient is φ = 90957749544.

The previous prime is 212313450421. The next prime is 212313450467. The reversal of 212313450454 is 454054313212.

It is a super-2 number, since 2×212313450454² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2771634 + ... + 2847205.

It is an arithmetic number, because the mean of its divisors is an integer number (22756302000).

Almost surely, 2^212313450454 is an apocalyptic number.

212313450454 is a deficient number, since it is larger than the sum of its proper divisors (151787381546).

212313450454 is a wasteful number, since it uses less digits than its factorization.

212313450454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5621547.

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 212313450454 its reverse (454054313212), we get a palindrome (666367763666).

The spelling of 212313450454 in words is "two hundred twelve billion, three hundred thirteen million, four hundred fifty thousand, four hundred fifty-four".