2130012987 has 4 divisors (see below), whose sum is σ = 2840017320. Its totient is φ = 1420008656.

The previous prime is 2130012949. The next prime is 2130013019. The reversal of 2130012987 is 7892100312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2130012987 - 2⁶ = 2130012923 is a prime.

2130012987 is a modest number, since divided by 12987 gives 2130 as remainder.

It is not an unprimeable number, because it can be changed into a prime (2130012947) 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, 355002162 + ... + 355002167.

It is an arithmetic number, because the mean of its divisors is an integer number (710004330).

Almost surely, 2^2130012987 is an apocalyptic number.

2130012987 is a deficient number, since it is larger than the sum of its proper divisors (710004333).

2130012987 is an equidigital number, since it uses as much as digits as its factorization.

2130012987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710004332.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 2130012987 is about 46152.0637350054. The cubic root of 2130012987 is about 1286.6509661953.

The spelling of 2130012987 in words is "two billion, one hundred thirty million, twelve thousand, nine hundred eighty-seven".