11421235937 has 2 divisors, whose sum is σ = 11421235938. Its totient is φ = 11421235936.

The previous prime is 11421235933. The next prime is 11421235957. The reversal of 11421235937 is 73953212411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10933002721 + 488233216 = 104561^2 + 22096^2 .

It is a cyclic number.

It is not a de Polignac number, because 11421235937 - 2² = 11421235933 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11421235937.

It is not a weakly prime, because it can be changed into another prime (11421235933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5710617968 + 5710617969.

It is an arithmetic number, because the mean of its divisors is an integer number (5710617969).

Almost surely, 2^11421235937 is an apocalyptic number.

It is an amenable number.

11421235937 is a deficient number, since it is larger than the sum of its proper divisors (1).

11421235937 is an equidigital number, since it uses as much as digits as its factorization.

11421235937 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 38.

The spelling of 11421235937 in words is "eleven billion, four hundred twenty-one million, two hundred thirty-five thousand, nine hundred thirty-seven".