11626142321 has 2 divisors, whose sum is σ = 11626142322. Its totient is φ = 11626142320.

The previous prime is 11626142273. The next prime is 11626142417. The reversal of 11626142321 is 12324162611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10029021025 + 1597121296 = 100145^2 + 39964^2 .

It is a cyclic number.

It is not a de Polignac number, because 11626142321 - 2¹⁸ = 11625880177 is a prime.

It is not a weakly prime, because it can be changed into another prime (11626142821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5813071160 + 5813071161.

It is an arithmetic number, because the mean of its divisors is an integer number (5813071161).

Almost surely, 2^11626142321 is an apocalyptic number.

It is an amenable number.

11626142321 is a deficient number, since it is larger than the sum of its proper divisors (1).

11626142321 is an equidigital number, since it uses as much as digits as its factorization.

11626142321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 29.

The spelling of 11626142321 in words is "eleven billion, six hundred twenty-six million, one hundred forty-two thousand, three hundred twenty-one".