20211001133023 has 2 divisors, whose sum is σ = 20211001133024. Its totient is φ = 20211001133022.

The previous prime is 20211001132981. The next prime is 20211001133131. The reversal of 20211001133023 is 32033110011202.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20211001133023 is a prime.

It is a super-2 number, since 2×20211001133023² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20211001139023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10105500566511 + 10105500566512.

It is an arithmetic number, because the mean of its divisors is an integer number (10105500566512).

Almost surely, 2^{20211001133023} is an apocalyptic number.

20211001133023 is a deficient number, since it is larger than the sum of its proper divisors (1).

20211001133023 is an equidigital number, since it uses as much as digits as its factorization.

20211001133023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 20211001133023 its reverse (32033110011202), we get a palindrome (52244111144225).

The spelling of 20211001133023 in words is "twenty trillion, two hundred eleven billion, one million, one hundred thirty-three thousand, twenty-three".