12011430461 has 16 divisors (see below), whose sum is σ = 13278816000. Its totient is φ = 10806943488.

The previous prime is 12011430451. The next prime is 12011430481. The reversal of 12011430461 is 16403411021.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12011430461 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011430451) 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, 726515 + ... + 742863.

It is an arithmetic number, because the mean of its divisors is an integer number (829926000).

Almost surely, 2^12011430461 is an apocalyptic number.

It is an amenable number.

12011430461 is a deficient number, since it is larger than the sum of its proper divisors (1267385539).

12011430461 is a wasteful number, since it uses less digits than its factorization.

12011430461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18268.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 12011430461 its reverse (16403411021), we get a palindrome (28414841482).

The spelling of 12011430461 in words is "twelve billion, eleven million, four hundred thirty thousand, four hundred sixty-one".