11342402009 has 2 divisors, whose sum is σ = 11342402010. Its totient is φ = 11342402008.

The previous prime is 11342401981. The next prime is 11342402017. The reversal of 11342402009 is 90020424311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11295438400 + 46963609 = 106280^2 + 6853^2 .

It is a cyclic number.

It is not a de Polignac number, because 11342402009 - 2²⁰ = 11341353433 is a prime.

It is not a weakly prime, because it can be changed into another prime (11342402039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5671201004 + 5671201005.

It is an arithmetic number, because the mean of its divisors is an integer number (5671201005).

Almost surely, 2^11342402009 is an apocalyptic number.

It is an amenable number.

11342402009 is a deficient number, since it is larger than the sum of its proper divisors (1).

11342402009 is an equidigital number, since it uses as much as digits as its factorization.

11342402009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The spelling of 11342402009 in words is "eleven billion, three hundred forty-two million, four hundred two thousand, nine".