102002111121 has 8 divisors (see below), whose sum is σ = 136005165184. Its totient is φ = 68000232240.

The previous prime is 102002111093. The next prime is 102002111143. The reversal of 102002111121 is 121111200201.

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

It is not a de Polignac number, because 102002111121 - 2³¹ = 99854627473 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102002111097 and 102002111106.

It is not an unprimeable number, because it can be changed into a prime (102002111521) 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, 66046 + ... + 456471.

It is an arithmetic number, because the mean of its divisors is an integer number (17000645648).

Almost surely, 2^102002111121 is an apocalyptic number.

It is an amenable number.

102002111121 is a deficient number, since it is larger than the sum of its proper divisors (34003054063).

102002111121 is an equidigital number, since it uses as much as digits as its factorization.

102002111121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587591.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 102002111121 its reverse (121111200201), we get a palindrome (223113311322).

The spelling of 102002111121 in words is "one hundred two billion, two million, one hundred eleven thousand, one hundred twenty-one".