43121134254 has 64 divisors (see below), whose sum is σ = 96059996928. Its totient is φ = 12795148800.

The previous prime is 43121134247. The next prime is 43121134307. The reversal of 43121134254 is 45243112134.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 584184 + ... + 653844.

It is an arithmetic number, because the mean of its divisors is an integer number (1500937452).

Almost surely, 2^43121134254 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43121134254, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48029998464).

43121134254 is an abundant number, since it is smaller than the sum of its proper divisors (52938862674).

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

43121134254 is a wasteful number, since it uses less digits than its factorization.

43121134254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69873.

The product of its digits is 11520, while the sum is 30.

Adding to 43121134254 its reverse (45243112134), we get a palindrome (88364246388).

The spelling of 43121134254 in words is "forty-three billion, one hundred twenty-one million, one hundred thirty-four thousand, two hundred fifty-four".