1021023102121 has 8 divisors (see below), whose sum is σ = 1114511576544. Its totient is φ = 927645993120.

The previous prime is 1021023102103. The next prime is 1021023102179. The reversal of 1021023102121 is 1212013201201.

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

It is not a de Polignac number, because 1021023102121 - 2¹³ = 1021023093929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1021023102095 and 1021023102104.

It is not an unprimeable number, because it can be changed into a prime (1021023102221) 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, 27822180 + ... + 27858853.

It is an arithmetic number, because the mean of its divisors is an integer number (139313947068).

Almost surely, 2^{1021023102121} is an apocalyptic number.

1021023102121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1021023102121 is a deficient number, since it is larger than the sum of its proper divisors (93488474423).

1021023102121 is a wasteful number, since it uses less digits than its factorization.

1021023102121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55682711.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1021023102121 its reverse (1212013201201), we get a palindrome (2233036303322).

The spelling of 1021023102121 in words is "one trillion, twenty-one billion, twenty-three million, one hundred two thousand, one hundred twenty-one".