102120020101 has 8 divisors (see below), whose sum is σ = 111420468000. Its totient is φ = 92822373840.

The previous prime is 102120020083. The next prime is 102120020117. The reversal of 102120020101 is 101020021201.

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 102120020101 - 2¹⁹ = 102119495813 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 (102120020131) 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, 623826 + ... + 770323.

It is an arithmetic number, because the mean of its divisors is an integer number (13927558500).

Almost surely, 2^102120020101 is an apocalyptic number.

102120020101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

102120020101 is a deficient number, since it is larger than the sum of its proper divisors (9300447899).

102120020101 is a wasteful number, since it uses less digits than its factorization.

102120020101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1400819.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 102120020101 its reverse (101020021201), we get a palindrome (203140041302).

The spelling of 102120020101 in words is "one hundred two billion, one hundred twenty million, twenty thousand, one hundred one".