102031022121 has 8 divisors (see below), whose sum is σ = 155475843264. Its totient is φ = 58303441200.

The previous prime is 102031022113. The next prime is 102031022123. The reversal of 102031022121 is 121220130201.

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

It is not a de Polignac number, because 102031022121 - 2³ = 102031022113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102031022121.

It is not an unprimeable number, because it can be changed into a prime (102031022123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2429310030 + ... + 2429310071.

It is an arithmetic number, because the mean of its divisors is an integer number (19434480408).

Almost surely, 2^102031022121 is an apocalyptic number.

It is an amenable number.

102031022121 is a deficient number, since it is larger than the sum of its proper divisors (53444821143).

102031022121 is an equidigital number, since it uses as much as digits as its factorization.

102031022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4858620111.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 102031022121 its reverse (121220130201), we get a palindrome (223251152322).

The spelling of 102031022121 in words is "one hundred two billion, thirty-one million, twenty-two thousand, one hundred twenty-one".