11461413721 has 2 divisors, whose sum is σ = 11461413722. Its totient is φ = 11461413720.

The previous prime is 11461413707. The next prime is 11461413767. The reversal of 11461413721 is 12731416411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6170888025 + 5290525696 = 78555^2 + 72736^2 .

It is a cyclic number.

It is not a de Polignac number, because 11461413721 - 2¹¹ = 11461411673 is a prime.

It is not a weakly prime, because it can be changed into another prime (11461413701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5730706860 + 5730706861.

It is an arithmetic number, because the mean of its divisors is an integer number (5730706861).

Almost surely, 2^11461413721 is an apocalyptic number.

It is an amenable number.

11461413721 is a deficient number, since it is larger than the sum of its proper divisors (1).

11461413721 is an equidigital number, since it uses as much as digits as its factorization.

11461413721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 31.

The spelling of 11461413721 in words is "eleven billion, four hundred sixty-one million, four hundred thirteen thousand, seven hundred twenty-one".