2130012949 has 2 divisors, whose sum is σ = 2130012950. Its totient is φ = 2130012948.

The previous prime is 2130012947. The next prime is 2130013019. The reversal of 2130012949 is 9492100312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1174090225 + 955922724 = 34265^2 + 30918^2 .

It is a cyclic number.

It is not a de Polignac number, because 2130012949 - 2¹ = 2130012947 is a prime.

Together with 2130012947, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2130012949.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2130012947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065006474 + 1065006475.

It is an arithmetic number, because the mean of its divisors is an integer number (1065006475).

Almost surely, 2^2130012949 is an apocalyptic number.

It is an amenable number.

2130012949 is a deficient number, since it is larger than the sum of its proper divisors (1).

2130012949 is an equidigital number, since it uses as much as digits as its factorization.

2130012949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 2130012949 is about 46152.0633233228. The cubic root of 2130012949 is about 1286.6509585439.

The spelling of 2130012949 in words is "two billion, one hundred thirty million, twelve thousand, nine hundred forty-nine".