2131223120130 has 128 divisors (see below), whose sum is σ = 5833248825600. Its totient is φ = 493678854144.

The previous prime is 2131223120129. The next prime is 2131223120149. The reversal of 2131223120130 is 310213221312.

It is a super-2 number, since 2×2131223120130² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2131223120097 and 2131223120106.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 57059001 + ... + 57096339.

It is an arithmetic number, because the mean of its divisors is an integer number (45572256450).

Almost surely, 2^{2131223120130} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2131223120130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2916624412800).

2131223120130 is an abundant number, since it is smaller than the sum of its proper divisors (3702025705470).

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

2131223120130 is a wasteful number, since it uses less digits than its factorization.

2131223120130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45988.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 2131223120130 its reverse (310213221312), we get a palindrome (2441436341442).

The spelling of 2131223120130 in words is "two trillion, one hundred thirty-one billion, two hundred twenty-three million, one hundred twenty thousand, one hundred thirty".