2131125312241 has 4 divisors (see below), whose sum is σ = 2131129285632. Its totient is φ = 2131121338852.

The previous prime is 2131125312209. The next prime is 2131125312247. The reversal of 2131125312241 is 1422135211312.

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 2131125312241 - 2⁵ = 2131125312209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2131125312247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1027945 + ... + 2306278.

It is an arithmetic number, because the mean of its divisors is an integer number (532782321408).

Almost surely, 2^{2131125312241} is an apocalyptic number.

It is an amenable number.

2131125312241 is a deficient number, since it is larger than the sum of its proper divisors (3973391).

2131125312241 is an equidigital number, since it uses as much as digits as its factorization.

2131125312241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3973390.

The product of its digits is 2880, while the sum is 28.

The spelling of 2131125312241 in words is "two trillion, one hundred thirty-one billion, one hundred twenty-five million, three hundred twelve thousand, two hundred forty-one".