2331021045131 has 4 divisors (see below), whose sum is σ = 2411401081200. Its totient is φ = 2250641009064.

The previous prime is 2331021045113. The next prime is 2331021045151. The reversal of 2331021045131 is 1315401201332.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2331021045131 is a prime.

It is a super-2 number, since 2×2331021045131² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2331021045131.

It is not an unprimeable number, because it can be changed into a prime (2331021045151) 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, 40190017991 + ... + 40190018048.

It is an arithmetic number, because the mean of its divisors is an integer number (602850270300).

Almost surely, 2^{2331021045131} is an apocalyptic number.

2331021045131 is a deficient number, since it is larger than the sum of its proper divisors (80380036069).

2331021045131 is an equidigital number, since it uses as much as digits as its factorization.

2331021045131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80380036068.

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 2331021045131 its reverse (1315401201332), we get a palindrome (3646422246463).

The spelling of 2331021045131 in words is "two trillion, three hundred thirty-one billion, twenty-one million, forty-five thousand, one hundred thirty-one".