2131223113513 has 16 divisors (see below), whose sum is σ = 2306865456000. Its totient is φ = 1957253950080.

The previous prime is 2131223113501. The next prime is 2131223113553. The reversal of 2131223113513 is 3153113221312.

It is not a de Polignac number, because 2131223113513 - 2²¹ = 2131221016361 is a prime.

It is a super-2 number, since 2×2131223113513² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2131223113553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54335853 + ... + 54375061.

It is an arithmetic number, because the mean of its divisors is an integer number (144179091000).

Almost surely, 2^{2131223113513} is an apocalyptic number.

It is an amenable number.

2131223113513 is a deficient number, since it is larger than the sum of its proper divisors (175642342487).

2131223113513 is a wasteful number, since it uses less digits than its factorization.

2131223113513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60432.

The product of its digits is 3240, while the sum is 28.

Adding to 2131223113513 its reverse (3153113221312), we get a palindrome (5284336334825).

The spelling of 2131223113513 in words is "two trillion, one hundred thirty-one billion, two hundred twenty-three million, one hundred thirteen thousand, five hundred thirteen".