2112103031213 has 16 divisors (see below), whose sum is σ = 2450197997184. Its totient is φ = 1783107025920.

The previous prime is 2112103031201. The next prime is 2112103031263. The reversal of 2112103031213 is 3121303012112.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2112103031213 - 2⁴ = 2112103031197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112103031263) 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, 3125981 + ... + 3741117.

It is an arithmetic number, because the mean of its divisors is an integer number (153137374824).

Almost surely, 2^{2112103031213} is an apocalyptic number.

It is an amenable number.

2112103031213 is a deficient number, since it is larger than the sum of its proper divisors (338094965971).

2112103031213 is an equidigital number, since it uses as much as digits as its factorization.

2112103031213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622532.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 2112103031213 its reverse (3121303012112), we get a palindrome (5233406043325).

It can be divided in two parts, 211210 and 3031213, that added together give a palindrome (3242423).

The spelling of 2112103031213 in words is "two trillion, one hundred twelve billion, one hundred three million, thirty-one thousand, two hundred thirteen".