2115443303213 has 2 divisors, whose sum is σ = 2115443303214. Its totient is φ = 2115443303212.

The previous prime is 2115443303209. The next prime is 2115443303221. The reversal of 2115443303213 is 3123033445112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2092064281609 + 23379021604 = 1446397^2 + 152902^2 .

It is a cyclic number.

It is not a de Polignac number, because 2115443303213 - 2² = 2115443303209 is a prime.

It is a super-2 number, since 2×2115443303213² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2115443303213.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2115443303203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1057721651606 + 1057721651607.

It is an arithmetic number, because the mean of its divisors is an integer number (1057721651607).

Almost surely, 2^{2115443303213} is an apocalyptic number.

It is an amenable number.

2115443303213 is a deficient number, since it is larger than the sum of its proper divisors (1).

2115443303213 is an equidigital number, since it uses as much as digits as its factorization.

2115443303213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 32.

Adding to 2115443303213 its reverse (3123033445112), we get a palindrome (5238476748325).

The spelling of 2115443303213 in words is "two trillion, one hundred fifteen billion, four hundred forty-three million, three hundred three thousand, two hundred thirteen".