2013212989 has 2 divisors, whose sum is σ = 2013212990. Its totient is φ = 2013212988.

The previous prime is 2013212987. The next prime is 2013213029. The reversal of 2013212989 is 9892123102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1547084889 + 466128100 = 39333^2 + 21590^2 .

It is a cyclic number.

It is not a de Polignac number, because 2013212989 - 2¹ = 2013212987 is a prime.

Together with 2013212987, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2013212983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006606494 + 1006606495.

It is an arithmetic number, because the mean of its divisors is an integer number (1006606495).

Almost surely, 2^2013212989 is an apocalyptic number.

It is an amenable number.

2013212989 is a deficient number, since it is larger than the sum of its proper divisors (1).

2013212989 is an equidigital number, since it uses as much as digits as its factorization.

2013212989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 2013212989 is about 44868.8420733141. The cubic root of 2013212989 is about 1262.6895160260.

The spelling of 2013212989 in words is "two billion, thirteen million, two hundred twelve thousand, nine hundred eighty-nine".