11101942387 has 2 divisors, whose sum is σ = 11101942388. Its totient is φ = 11101942386.

The previous prime is 11101942373. The next prime is 11101942409. The reversal of 11101942387 is 78324910111.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11101942387 is a prime.

It is not a weakly prime, because it can be changed into another prime (11101942337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550971193 + 5550971194.

It is an arithmetic number, because the mean of its divisors is an integer number (5550971194).

Almost surely, 2^11101942387 is an apocalyptic number.

11101942387 is a deficient number, since it is larger than the sum of its proper divisors (1).

11101942387 is an equidigital number, since it uses as much as digits as its factorization.

11101942387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 37.

The spelling of 11101942387 in words is "eleven billion, one hundred one million, nine hundred forty-two thousand, three hundred eighty-seven".