102021211110253 has 2 divisors, whose sum is σ = 102021211110254. Its totient is φ = 102021211110252.

The previous prime is 102021211110197. The next prime is 102021211110257. The reversal of 102021211110253 is 352011112120201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83127949207209 + 18893261903044 = 9117453^2 + 4346638^2 .

It is a cyclic number.

It is not a de Polignac number, because 102021211110253 - 2¹³ = 102021211102061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102021211110257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51010605555126 + 51010605555127.

It is an arithmetic number, because the mean of its divisors is an integer number (51010605555127).

Almost surely, 2^{102021211110253} is an apocalyptic number.

It is an amenable number.

102021211110253 is a deficient number, since it is larger than the sum of its proper divisors (1).

102021211110253 is an equidigital number, since it uses as much as digits as its factorization.

102021211110253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 22.

Adding to 102021211110253 its reverse (352011112120201), we get a palindrome (454032323230454).

The spelling of 102021211110253 in words is "one hundred two trillion, twenty-one billion, two hundred eleven million, one hundred ten thousand, two hundred fifty-three".