20213131344134 has 8 divisors (see below), whose sum is σ = 30324328118328. Its totient is φ = 10105021971360.

The previous prime is 20213131344127. The next prime is 20213131344137. The reversal of 20213131344134 is 43144313131202.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20213131344134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20213131344137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 771833987 + ... + 771860174.

It is an arithmetic number, because the mean of its divisors is an integer number (3790541014791).

Almost surely, 2^{20213131344134} is an apocalyptic number.

20213131344134 is a deficient number, since it is larger than the sum of its proper divisors (10111196774194).

20213131344134 is a wasteful number, since it uses less digits than its factorization.

20213131344134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1543700710.

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

Adding to 20213131344134 its reverse (43144313131202), we get a palindrome (63357444475336).

The spelling of 20213131344134 in words is "twenty trillion, two hundred thirteen billion, one hundred thirty-one million, three hundred forty-four thousand, one hundred thirty-four".