102020020111121 has 8 divisors (see below), whose sum is σ = 117748707795264. Its totient is φ = 86579932201200.

The previous prime is 102020020111073. The next prime is 102020020111123. The reversal of 102020020111121 is 121111020020201.

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 102020020111121 - 2⁶ = 102020020111057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102020020111096 and 102020020111105.

It is not an unprimeable number, because it can be changed into a prime (102020020111123) 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, 72149942795 + ... + 72149944208.

It is an arithmetic number, because the mean of its divisors is an integer number (14718588474408).

Almost surely, 2^{102020020111121} is an apocalyptic number.

It is an amenable number.

102020020111121 is a deficient number, since it is larger than the sum of its proper divisors (15728687684143).

102020020111121 is a wasteful number, since it uses less digits than its factorization.

102020020111121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144299887111.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 102020020111121 its reverse (121111020020201), we get a palindrome (223131040131322).

The spelling of 102020020111121 in words is "one hundred two trillion, twenty billion, twenty million, one hundred eleven thousand, one hundred twenty-one".