20213230110131 has 4 divisors (see below), whose sum is σ = 20213413948392. Its totient is φ = 20213046271872.

The previous prime is 20213230110121. The next prime is 20213230110179. The reversal of 20213230110131 is 13101103231202.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20213230110131 is a prime.

It is a super-2 number, since 2×20213230110131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20213230110121) 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, 91754105 + ... + 91974138.

It is an arithmetic number, because the mean of its divisors is an integer number (5053353487098).

Almost surely, 2^{20213230110131} is an apocalyptic number.

20213230110131 is a deficient number, since it is larger than the sum of its proper divisors (183838261).

20213230110131 is a wasteful number, since it uses less digits than its factorization.

20213230110131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183838260.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 20213230110131 its reverse (13101103231202), we get a palindrome (33314333341333).

The spelling of 20213230110131 in words is "twenty trillion, two hundred thirteen billion, two hundred thirty million, one hundred ten thousand, one hundred thirty-one".