131021021343434 has 32 divisors (see below), whose sum is σ = 200360167128576. Its totient is φ = 64240850661120.

The previous prime is 131021021343427. The next prime is 131021021343451. The reversal of 131021021343434 is 434343120120131.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 131021021343434.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 628405487 + ... + 628613949.

It is an arithmetic number, because the mean of its divisors is an integer number (6261255222768).

Almost surely, 2^{131021021343434} is an apocalyptic number.

131021021343434 is a deficient number, since it is larger than the sum of its proper divisors (69339145785142).

131021021343434 is a wasteful number, since it uses less digits than its factorization.

131021021343434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224150.

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 131021021343434 its reverse (434343120120131), we get a palindrome (565364141463565).

The spelling of 131021021343434 in words is "one hundred thirty-one trillion, twenty-one billion, twenty-one million, three hundred forty-three thousand, four hundred thirty-four".