1187011411 has 2 divisors, whose sum is σ = 1187011412. Its totient is φ = 1187011410.

The previous prime is 1187011409. The next prime is 1187011481. The reversal of 1187011411 is 1141107811.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1187011411 - 2¹ = 1187011409 is a prime.

Together with 1187011409, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1187011481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 593505705 + 593505706.

It is an arithmetic number, because the mean of its divisors is an integer number (593505706).

Almost surely, 2^1187011411 is an apocalyptic number.

1187011411 is a deficient number, since it is larger than the sum of its proper divisors (1).

1187011411 is an equidigital number, since it uses as much as digits as its factorization.

1187011411 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 25.

The square root of 1187011411 is about 34453.0319565637. The cubic root of 1187011411 is about 1058.8106426804.

The spelling of 1187011411 in words is "one billion, one hundred eighty-seven million, eleven thousand, four hundred eleven".