42043131311 has 8 divisors (see below), whose sum is σ = 42152746944. Its totient is φ = 41933596320.

The previous prime is 42043131293. The next prime is 42043131349. The reversal of 42043131311 is 11313134024.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42043131311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42043131211) 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, 1104746 + ... + 1142168.

It is an arithmetic number, because the mean of its divisors is an integer number (5269093368).

Almost surely, 2^42043131311 is an apocalyptic number.

42043131311 is a deficient number, since it is larger than the sum of its proper divisors (109615633).

42043131311 is a wasteful number, since it uses less digits than its factorization.

42043131311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40321.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 42043131311 its reverse (11313134024), we get a palindrome (53356265335).

The spelling of 42043131311 in words is "forty-two billion, forty-three million, one hundred thirty-one thousand, three hundred eleven".