43121255212134 has 48 divisors (see below), whose sum is σ = 101923428484800. Its totient is φ = 13066987852080.

The previous prime is 43121255212127. The next prime is 43121255212163.

43121255212134 is a `hidden beast` number, since 4 + 3 + 1 + 2 + 125 + 521 + 2 + 1 + 3 + 4 = 666.

43121255212134 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×43121255212134² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65739717 + ... + 66392415.

It is an arithmetic number, because the mean of its divisors is an integer number (2123404760100).

Almost surely, 2^{43121255212134} is an apocalyptic number.

43121255212134 is an abundant number, since it is smaller than the sum of its proper divisors (58802173272666).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43121255212134 is a wasteful number, since it uses less digits than its factorization.

43121255212134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986385 (or 986382 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

It can be divided in two parts, 4312125 and 5212134, that added together give a palindrome (9524259).

The spelling of 43121255212134 in words is "forty-three trillion, one hundred twenty-one billion, two hundred fifty-five million, two hundred twelve thousand, one hundred thirty-four".