1187288023 has 2 divisors, whose sum is σ = 1187288024. Its totient is φ = 1187288022.

The previous prime is 1187287999. The next prime is 1187288029. The reversal of 1187288023 is 3208827811.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1187288023 - 2⁹ = 1187287511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1187288029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 593644011 + 593644012.

It is an arithmetic number, because the mean of its divisors is an integer number (593644012).

Almost surely, 2^1187288023 is an apocalyptic number.

1187288023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1187288023 is an equidigital number, since it uses as much as digits as its factorization.

1187288023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43008, while the sum is 40.

The square root of 1187288023 is about 34457.0460573741. The cubic root of 1187288023 is about 1058.8928819860.

The spelling of 1187288023 in words is "one billion, one hundred eighty-seven million, two hundred eighty-eight thousand, twenty-three".