1130238887 has 4 divisors (see below), whose sum is σ = 1134968160. Its totient is φ = 1125509616.

The previous prime is 1130238881. The next prime is 1130238899. The reversal of 1130238887 is 7888320311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7888320311 = 2819 ⋅2798269.

It is a cyclic number.

It is not a de Polignac number, because 1130238887 - 2¹⁰ = 1130237863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1130238881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2364278 + ... + 2364755.

It is an arithmetic number, because the mean of its divisors is an integer number (283742040).

Almost surely, 2^1130238887 is an apocalyptic number.

1130238887 is a deficient number, since it is larger than the sum of its proper divisors (4729273).

1130238887 is an equidigital number, since it uses as much as digits as its factorization.

1130238887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4729272.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 1130238887 is about 33619.0256699982. The cubic root of 1130238887 is about 1041.6538303727.

The spelling of 1130238887 in words is "one billion, one hundred thirty million, two hundred thirty-eight thousand, eight hundred eighty-seven".