102243152345 has 4 divisors (see below), whose sum is σ = 122691782820. Its totient is φ = 81794521872.

The previous prime is 102243152303. The next prime is 102243152353. The reversal of 102243152345 is 543251342201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 543251342201 = 83257 ⋅6524993.

It can be written as a sum of positive squares in 2 ways, for example, as 64574941456 + 37668210889 = 254116^2 + 194083^2 .

It is a cyclic number.

It is not a de Polignac number, because 102243152345 - 2¹⁰ = 102243151321 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10224315230 + ... + 10224315239.

It is an arithmetic number, because the mean of its divisors is an integer number (30672945705).

Almost surely, 2^102243152345 is an apocalyptic number.

It is an amenable number.

102243152345 is a deficient number, since it is larger than the sum of its proper divisors (20448630475).

102243152345 is an equidigital number, since it uses as much as digits as its factorization.

102243152345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20448630474.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 102243152345 its reverse (543251342201), we get a palindrome (645494494546).

The spelling of 102243152345 in words is "one hundred two billion, two hundred forty-three million, one hundred fifty-two thousand, three hundred forty-five".