102002243253 has 4 divisors (see below), whose sum is σ = 136002991008. Its totient is φ = 68001495500.

The previous prime is 102002243237. The next prime is 102002243263. The reversal of 102002243253 is 352342200201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 352342200201 = 3 ⋅117447400067.

It is a cyclic number.

It is not a de Polignac number, because 102002243253 - 2⁴ = 102002243237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102002243263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17000373873 + ... + 17000373878.

It is an arithmetic number, because the mean of its divisors is an integer number (34000747752).

Almost surely, 2^102002243253 is an apocalyptic number.

It is an amenable number.

102002243253 is a deficient number, since it is larger than the sum of its proper divisors (34000747755).

102002243253 is an equidigital number, since it uses as much as digits as its factorization.

102002243253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34000747754.

The product of its (nonzero) digits is 2880, while the sum is 24.

Adding to 102002243253 its reverse (352342200201), we get a palindrome (454344443454).

The spelling of 102002243253 in words is "one hundred two billion, two million, two hundred forty-three thousand, two hundred fifty-three".