102101220109983 has 4 divisors (see below), whose sum is σ = 136134960146648. Its totient is φ = 68067480073320.

The previous prime is 102101220109951. The next prime is 102101220110051. The reversal of 102101220109983 is 389901022101201.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 102101220109983 - 2⁵ = 102101220109951 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 (102101220109283) 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, 17016870018328 + ... + 17016870018333.

It is an arithmetic number, because the mean of its divisors is an integer number (34033740036662).

Almost surely, 2^{102101220109983} is an apocalyptic number.

102101220109983 is a deficient number, since it is larger than the sum of its proper divisors (34033740036665).

102101220109983 is an equidigital number, since it uses as much as digits as its factorization.

102101220109983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34033740036664.

The product of its (nonzero) digits is 15552, while the sum is 39.

The spelling of 102101220109983 in words is "one hundred two trillion, one hundred one billion, two hundred twenty million, one hundred nine thousand, nine hundred eighty-three".