2131102333121 has 4 divisors (see below), whose sum is σ = 2204588620500. Its totient is φ = 2057616045744.

The previous prime is 2131102333069. The next prime is 2131102333133. The reversal of 2131102333121 is 1213332011312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1085422250896 + 1045680082225 = 1041836^2 + 1022585^2 .

It is a cyclic number.

It is not a de Polignac number, because 2131102333121 - 2¹⁰ = 2131102332097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2131102333181) 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, 36743143646 + ... + 36743143703.

It is an arithmetic number, because the mean of its divisors is an integer number (551147155125).

Almost surely, 2^{2131102333121} is an apocalyptic number.

It is an amenable number.

2131102333121 is a deficient number, since it is larger than the sum of its proper divisors (73486287379).

2131102333121 is an equidigital number, since it uses as much as digits as its factorization.

2131102333121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73486287378.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 2131102333121 its reverse (1213332011312), we get a palindrome (3344434344433).

The spelling of 2131102333121 in words is "two trillion, one hundred thirty-one billion, one hundred two million, three hundred thirty-three thousand, one hundred twenty-one".