20211001001153 has 2 divisors, whose sum is σ = 20211001001154. Its totient is φ = 20211001001152.

The previous prime is 20211001001083. The next prime is 20211001001267. The reversal of 20211001001153 is 35110010011202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19917592445569 + 293408555584 = 4462913^2 + 541672^2 .

It is a cyclic number.

It is not a de Polignac number, because 20211001001153 - 2²⁸ = 20210732565697 is a prime.

It is a super-2 number, since 2×20211001001153² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20211001000153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10105500500576 + 10105500500577.

It is an arithmetic number, because the mean of its divisors is an integer number (10105500500577).

Almost surely, 2^{20211001001153} is an apocalyptic number.

It is an amenable number.

20211001001153 is a deficient number, since it is larger than the sum of its proper divisors (1).

20211001001153 is an equidigital number, since it uses as much as digits as its factorization.

20211001001153 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60, while the sum is 17.

Adding to 20211001001153 its reverse (35110010011202), we get a palindrome (55321011012355).

The spelling of 20211001001153 in words is "twenty trillion, two hundred eleven billion, one million, one thousand, one hundred fifty-three".