100210101211993 has 2 divisors, whose sum is σ = 100210101211994. Its totient is φ = 100210101211992.

The previous prime is 100210101211991. The next prime is 100210101212131. The reversal of 100210101211993 is 399112101012001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99830531859529 + 379569352464 = 9991523^2 + 616092^2 .

It is a cyclic number.

It is not a de Polignac number, because 100210101211993 - 2¹ = 100210101211991 is a prime.

Together with 100210101211991, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (100210101211991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50105050605996 + 50105050605997.

It is an arithmetic number, because the mean of its divisors is an integer number (50105050605997).

Almost surely, 2^{100210101211993} is an apocalyptic number.

It is an amenable number.

100210101211993 is a deficient number, since it is larger than the sum of its proper divisors (1).

100210101211993 is an equidigital number, since it uses as much as digits as its factorization.

100210101211993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 31.

Adding to 100210101211993 its reverse (399112101012001), we get a palindrome (499322202223994).

The spelling of 100210101211993 in words is "one hundred trillion, two hundred ten billion, one hundred one million, two hundred eleven thousand, nine hundred ninety-three".