102443120213 has 4 divisors (see below), whose sum is σ = 117077851680. Its totient is φ = 87808388748.

The previous prime is 102443120209. The next prime is 102443120231. The reversal of 102443120213 is 312021344201.

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.

It is a cyclic number.

It is not a de Polignac number, because 102443120213 - 2² = 102443120209 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102443120293) 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, 7317365723 + ... + 7317365736.

It is an arithmetic number, because the mean of its divisors is an integer number (29269462920).

Almost surely, 2^102443120213 is an apocalyptic number.

It is an amenable number.

102443120213 is a deficient number, since it is larger than the sum of its proper divisors (14634731467).

102443120213 is an equidigital number, since it uses as much as digits as its factorization.

102443120213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14634731466.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 102443120213 its reverse (312021344201), we get a palindrome (414464464414).

The spelling of 102443120213 in words is "one hundred two billion, four hundred forty-three million, one hundred twenty thousand, two hundred thirteen".