2131211213130 has 16 divisors (see below), whose sum is σ = 5114906911584. Its totient is φ = 568322990160.

The previous prime is 2131211213129. The next prime is 2131211213137. The reversal of 2131211213130 is 313121121312.

It is a super-2 number, since 2×2131211213130² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2131211213097 and 2131211213106.

It is not an unprimeable number, because it can be changed into a prime (2131211213137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35520186856 + ... + 35520186915.

It is an arithmetic number, because the mean of its divisors is an integer number (319681681974).

Almost surely, 2^{2131211213130} is an apocalyptic number.

2131211213130 is an abundant number, since it is smaller than the sum of its proper divisors (2983695698454).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2131211213130 is a wasteful number, since it uses less digits than its factorization.

2131211213130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71040373781.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 2131211213130 its reverse (313121121312), we get a palindrome (2444332334442).

The spelling of 2131211213130 in words is "two trillion, one hundred thirty-one billion, two hundred eleven million, two hundred thirteen thousand, one hundred thirty".