2111334202461 has 32 divisors (see below), whose sum is σ = 3201107655168. Its totient is φ = 1226430469440.

The previous prime is 2111334202441. The next prime is 2111334202463. The reversal of 2111334202461 is 1642024331112.

It is not a de Polignac number, because 2111334202461 - 2²⁶ = 2111267093597 is a prime.

It is a super-2 number, since 2×2111334202461² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111334202463) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12822555 + ... + 12986168.

It is an arithmetic number, because the mean of its divisors is an integer number (100034614224).

Almost surely, 2^{2111334202461} is an apocalyptic number.

It is an amenable number.

2111334202461 is a deficient number, since it is larger than the sum of its proper divisors (1089773452707).

2111334202461 is a wasteful number, since it uses less digits than its factorization.

2111334202461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25808841.

The product of its (nonzero) digits is 6912, while the sum is 30.

Adding to 2111334202461 its reverse (1642024331112), we get a palindrome (3753358533573).

The spelling of 2111334202461 in words is "two trillion, one hundred eleven billion, three hundred thirty-four million, two hundred two thousand, four hundred sixty-one".