2131043111142 has 64 divisors (see below), whose sum is σ = 4929769672704. Its totient is φ = 606954723840.

The previous prime is 2131043111081. The next prime is 2131043111149. The reversal of 2131043111142 is 2411113401312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131043111149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 473158 + ... + 2118009.

It is an arithmetic number, because the mean of its divisors is an integer number (77027651136).

Almost surely, 2^{2131043111142} is an apocalyptic number.

2131043111142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2131043111142 is an abundant number, since it is smaller than the sum of its proper divisors (2798726561562).

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

2131043111142 is a wasteful number, since it uses less digits than its factorization.

2131043111142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2591933.

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 2131043111142 its reverse (2411113401312), we get a palindrome (4542156512454).

The spelling of 2131043111142 in words is "two trillion, one hundred thirty-one billion, forty-three million, one hundred eleven thousand, one hundred forty-two".