102020101999999 has 8 divisors (see below), whose sum is σ = 102031463064960. Its totient is φ = 102008741604000.

The previous prime is 102020101999897. The next prime is 102020102000021. The reversal of 102020101999999 is 999999101020201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102020101999999 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 (102020101996999) 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, 342846322 + ... + 343143760.

It is an arithmetic number, because the mean of its divisors is an integer number (12753932883120).

Almost surely, 2^{102020101999999} is an apocalyptic number.

102020101999999 is a deficient number, since it is larger than the sum of its proper divisors (11361064961).

102020101999999 is a wasteful number, since it uses less digits than its factorization.

102020101999999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334481.

The product of its (nonzero) digits is 2125764, while the sum is 61.

The spelling of 102020101999999 in words is "one hundred two trillion, twenty billion, one hundred one million, nine hundred ninety-nine thousand, nine hundred ninety-nine".