2102331000121 has 4 divisors (see below), whose sum is σ = 2293452000144. Its totient is φ = 1911210000100.

The previous prime is 2102331000103. The next prime is 2102331000173. The reversal of 2102331000121 is 1210001332012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2102331000121 - 2¹⁷ = 2102330869049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2102331000095 and 2102331000104.

It is not an unprimeable number, because it can be changed into a prime (2102331003121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95560499995 + ... + 95560500016.

It is an arithmetic number, because the mean of its divisors is an integer number (573363000036).

Almost surely, 2^{2102331000121} is an apocalyptic number.

It is an amenable number.

2102331000121 is a deficient number, since it is larger than the sum of its proper divisors (191121000023).

2102331000121 is a wasteful number, since it uses less digits than its factorization.

2102331000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191121000022.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 2102331000121 its reverse (1210001332012), we get a palindrome (3312332332133).

The spelling of 2102331000121 in words is "two trillion, one hundred two billion, three hundred thirty-one million, one hundred twenty-one", and thus it is an aban number.