42131123311 has 2 divisors, whose sum is σ = 42131123312. Its totient is φ = 42131123310.

The previous prime is 42131123257. The next prime is 42131123351. The reversal of 42131123311 is 11332113124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42131123311 - 2⁷ = 42131123183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42131123351) by changing a digit.

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 as a sum of consecutive naturals, namely, 21065561655 + 21065561656.

It is an arithmetic number, because the mean of its divisors is an integer number (21065561656).

Almost surely, 2^42131123311 is an apocalyptic number.

42131123311 is a deficient number, since it is larger than the sum of its proper divisors (1).

42131123311 is an equidigital number, since it uses as much as digits as its factorization.

42131123311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 22.

Adding to 42131123311 its reverse (11332113124), we get a palindrome (53463236435).

The spelling of 42131123311 in words is "forty-two billion, one hundred thirty-one million, one hundred twenty-three thousand, three hundred eleven".