11442121429 has 2 divisors, whose sum is σ = 11442121430. Its totient is φ = 11442121428.

The previous prime is 11442121409. The next prime is 11442121441. The reversal of 11442121429 is 92412124411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11378488900 + 63632529 = 106670^2 + 7977^2 .

It is a cyclic number.

It is not a de Polignac number, because 11442121429 - 2⁹ = 11442120917 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11442121429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11442121409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5721060714 + 5721060715.

It is an arithmetic number, because the mean of its divisors is an integer number (5721060715).

Almost surely, 2^11442121429 is an apocalyptic number.

It is an amenable number.

11442121429 is a deficient number, since it is larger than the sum of its proper divisors (1).

11442121429 is an equidigital number, since it uses as much as digits as its factorization.

11442121429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608, while the sum is 31.

The spelling of 11442121429 in words is "eleven billion, four hundred forty-two million, one hundred twenty-one thousand, four hundred twenty-nine".