11430840461 has 2 divisors, whose sum is σ = 11430840462. Its totient is φ = 11430840460.

The previous prime is 11430840353. The next prime is 11430840493. The reversal of 11430840461 is 16404803411.

It is an a-pointer prime, because the next prime (11430840493) can be obtained adding 11430840461 to its sum of digits (32).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6067475236 + 5363365225 = 77894^2 + 73235^2 .

It is an emirp because it is prime and its reverse (16404803411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11430840461 - 2¹⁴ = 11430824077 is a prime.

It is a super-2 number, since 2×11430840461² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11430843461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5715420230 + 5715420231.

It is an arithmetic number, because the mean of its divisors is an integer number (5715420231).

Almost surely, 2^11430840461 is an apocalyptic number.

It is an amenable number.

11430840461 is a deficient number, since it is larger than the sum of its proper divisors (1).

11430840461 is an equidigital number, since it uses as much as digits as its factorization.

11430840461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 32.

The spelling of 11430840461 in words is "eleven billion, four hundred thirty million, eight hundred forty thousand, four hundred sixty-one".