20211130144243 has 2 divisors, whose sum is σ = 20211130144244. Its totient is φ = 20211130144242.

The previous prime is 20211130144099. The next prime is 20211130144253. The reversal of 20211130144243 is 34244103111202.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20211130144243 - 2³³ = 20202540209651 is a prime.

It is not a weakly prime, because it can be changed into another prime (20211130144253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10105565072121 + 10105565072122.

It is an arithmetic number, because the mean of its divisors is an integer number (10105565072122).

Almost surely, 2^{20211130144243} is an apocalyptic number.

20211130144243 is a deficient number, since it is larger than the sum of its proper divisors (1).

20211130144243 is an equidigital number, since it uses as much as digits as its factorization.

20211130144243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 20211130144243 its reverse (34244103111202), we get a palindrome (54455233255445).

The spelling of 20211130144243 in words is "twenty trillion, two hundred eleven billion, one hundred thirty million, one hundred forty-four thousand, two hundred forty-three".