102120021103 has 8 divisors (see below), whose sum is σ = 104071808016. Its totient is φ = 100169160000.

The previous prime is 102120021089. The next prime is 102120021149. The reversal of 102120021103 is 301120021201.

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-102120021103 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 (102120021163) 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, 6673 + ... + 451978.

It is an arithmetic number, because the mean of its divisors is an integer number (13008976002).

Almost surely, 2^102120021103 is an apocalyptic number.

102120021103 is a deficient number, since it is larger than the sum of its proper divisors (1951786913).

102120021103 is an equidigital number, since it uses as much as digits as its factorization.

102120021103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462905.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 102120021103 its reverse (301120021201), we get a palindrome (403240042304).

The spelling of 102120021103 in words is "one hundred two billion, one hundred twenty million, twenty-one thousand, one hundred three".