43131421311 has 8 divisors (see below), whose sum is σ = 62736612864. Its totient is φ = 26140255320.

The previous prime is 43131421283. The next prime is 43131421313. The reversal of 43131421311 is 11312413134.

It is a happy number.

43131421311 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 43131421311 - 2⁹ = 43131420799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43131421313) 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, 653506351 + ... + 653506416.

It is an arithmetic number, because the mean of its divisors is an integer number (7842076608).

Almost surely, 2^43131421311 is an apocalyptic number.

43131421311 is a deficient number, since it is larger than the sum of its proper divisors (19605191553).

43131421311 is a wasteful number, since it uses less digits than its factorization.

43131421311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1307012781.

The product of its digits is 864, while the sum is 24.

Adding to 43131421311 its reverse (11312413134), we get a palindrome (54443834445).

It can be divided in two parts, 4313142 and 1311, that added together give a triangular number (4314453 = T₂₉₃₇).

The spelling of 43131421311 in words is "forty-three billion, one hundred thirty-one million, four hundred twenty-one thousand, three hundred eleven".