102013501805 has 8 divisors (see below), whose sum is σ = 123891096672. Its totient is φ = 80627538448.

The previous prime is 102013501801. The next prime is 102013501861. The reversal of 102013501805 is 508105310201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102013501805 - 2² = 102013501801 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 (102013501801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122907419 + ... + 122908248.

It is an arithmetic number, because the mean of its divisors is an integer number (15486387084).

Almost surely, 2^102013501805 is an apocalyptic number.

It is an amenable number.

102013501805 is a deficient number, since it is larger than the sum of its proper divisors (21877594867).

102013501805 is an equidigital number, since it uses as much as digits as its factorization.

102013501805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245815755.

The product of its (nonzero) digits is 1200, while the sum is 26.

The spelling of 102013501805 in words is "one hundred two billion, thirteen million, five hundred one thousand, eight hundred five".