2011343250461 has 4 divisors (see below), whose sum is σ = 2080699914300. Its totient is φ = 1941986586624.

The previous prime is 2011343250457. The next prime is 2011343250479. The reversal of 2011343250461 is 1640523431102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1245219419236 + 766123831225 = 1115894^2 + 875285^2 .

It is a cyclic number.

It is not a de Polignac number, because 2011343250461 - 2² = 2011343250457 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011343250451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34678331876 + ... + 34678331933.

It is an arithmetic number, because the mean of its divisors is an integer number (520174978575).

Almost surely, 2^{2011343250461} is an apocalyptic number.

It is an amenable number.

2011343250461 is a deficient number, since it is larger than the sum of its proper divisors (69356663839).

2011343250461 is an equidigital number, since it uses as much as digits as its factorization.

2011343250461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69356663838.

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 2011343250461 its reverse (1640523431102), we get a palindrome (3651866681563).

The spelling of 2011343250461 in words is "two trillion, eleven billion, three hundred forty-three million, two hundred fifty thousand, four hundred sixty-one".