11421661351 has 2 divisors, whose sum is σ = 11421661352. Its totient is φ = 11421661350.

The previous prime is 11421661301. The next prime is 11421661369. The reversal of 11421661351 is 15316612411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11421661351 - 2²⁹ = 10884790439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11421661301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5710830675 + 5710830676.

It is an arithmetic number, because the mean of its divisors is an integer number (5710830676).

Almost surely, 2^11421661351 is an apocalyptic number.

11421661351 is a deficient number, since it is larger than the sum of its proper divisors (1).

11421661351 is an equidigital number, since it uses as much as digits as its factorization.

11421661351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 31.

The spelling of 11421661351 in words is "eleven billion, four hundred twenty-one million, six hundred sixty-one thousand, three hundred fifty-one".