11420897933 has 2 divisors, whose sum is σ = 11420897934. Its totient is φ = 11420897932.

The previous prime is 11420897879. The next prime is 11420897981. The reversal of 11420897933 is 33979802411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10596231844 + 824666089 = 102938^2 + 28717^2 .

It is an emirp because it is prime and its reverse (33979802411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11420897933 - 2¹² = 11420893837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11420890933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5710448966 + 5710448967.

It is an arithmetic number, because the mean of its divisors is an integer number (5710448967).

Almost surely, 2^11420897933 is an apocalyptic number.

It is an amenable number.

11420897933 is a deficient number, since it is larger than the sum of its proper divisors (1).

11420897933 is an equidigital number, since it uses as much as digits as its factorization.

11420897933 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 47.

The spelling of 11420897933 in words is "eleven billion, four hundred twenty million, eight hundred ninety-seven thousand, nine hundred thirty-three".