20212342104131 has 4 divisors (see below), whose sum is σ = 21401303404392. Its totient is φ = 19023380803872.

The previous prime is 20212342104109. The next prime is 20212342104137. The reversal of 20212342104131 is 13140124321202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20212342104131 - 2⁶ = 20212342104067 is a prime.

It is a super-2 number, since 2×20212342104131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20212342104131.

It is not an unprimeable number, because it can be changed into a prime (20212342104137) 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 3 ways as a sum of consecutive naturals, for example, 594480650105 + ... + 594480650138.

It is an arithmetic number, because the mean of its divisors is an integer number (5350325851098).

Almost surely, 2^{20212342104131} is an apocalyptic number.

20212342104131 is a deficient number, since it is larger than the sum of its proper divisors (1188961300261).

20212342104131 is a wasteful number, since it uses less digits than its factorization.

20212342104131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1188961300260.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 20212342104131 its reverse (13140124321202), we get a palindrome (33352466425333).

The spelling of 20212342104131 in words is "twenty trillion, two hundred twelve billion, three hundred forty-two million, one hundred four thousand, one hundred thirty-one".