102111211021153 has 2 divisors, whose sum is σ = 102111211021154. Its totient is φ = 102111211021152.

The previous prime is 102111211021151. The next prime is 102111211021207. The reversal of 102111211021153 is 351120112111201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94484290411809 + 7626920609344 = 9720303^2 + 2761688^2 .

It is a cyclic number.

It is not a de Polignac number, because 102111211021153 - 2¹ = 102111211021151 is a prime.

Together with 102111211021151, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (102111211021151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51055605510576 + 51055605510577.

It is an arithmetic number, because the mean of its divisors is an integer number (51055605510577).

Almost surely, 2^{102111211021153} is an apocalyptic number.

It is an amenable number.

102111211021153 is a deficient number, since it is larger than the sum of its proper divisors (1).

102111211021153 is an equidigital number, since it uses as much as digits as its factorization.

102111211021153 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 22.

Adding to 102111211021153 its reverse (351120112111201), we get a palindrome (453231323132354).

The spelling of 102111211021153 in words is "one hundred two trillion, one hundred eleven billion, two hundred eleven million, twenty-one thousand, one hundred fifty-three".