2131130110212 has 18 divisors (see below), whose sum is σ = 5387023334238. Its totient is φ = 710376703392.

The previous prime is 2131130110201. The next prime is 2131130110271. The reversal of 2131130110212 is 2120110311312.

2131130110212 is a `hidden beast` number, since 2 + 1 + 311 + 30 + 110 + 212 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1102739412996 + 1028390697216 = 1050114^2 + 1014096^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×2131130110212² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29599029273 + ... + 29599029344.

Almost surely, 2^{2131130110212} is an apocalyptic number.

It is an amenable number.

2131130110212 is an abundant number, since it is smaller than the sum of its proper divisors (3255893224026).

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

2131130110212 is a wasteful number, since it uses less digits than its factorization.

2131130110212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59198058627 (or 59198058622 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 2131130110212 its reverse (2120110311312), we get a palindrome (4251240421524).

The spelling of 2131130110212 in words is "two trillion, one hundred thirty-one billion, one hundred thirty million, one hundred ten thousand, two hundred twelve".