2012312153 has 4 divisors (see below), whose sum is σ = 2018013108. Its totient is φ = 2006611200.

The previous prime is 2012312147. The next prime is 2012312179. The reversal of 2012312153 is 3512132102.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1483174144 + 529138009 = 38512^2 + 23003^2 .

It is a cyclic number.

It is not a de Polignac number, because 2012312153 - 2⁶ = 2012312089 is a prime.

It is a super-2 number, since 2×2012312153² = 8098800402222990818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2012312123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2849948 + ... + 2850653.

It is an arithmetic number, because the mean of its divisors is an integer number (504503277).

Almost surely, 2^2012312153 is an apocalyptic number.

It is an amenable number.

2012312153 is a deficient number, since it is larger than the sum of its proper divisors (5700955).

2012312153 is an equidigital number, since it uses as much as digits as its factorization.

2012312153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5700954.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 2012312153 is about 44858.8024026500. The cubic root of 2012312153 is about 1262.5011528010.

Adding to 2012312153 its reverse (3512132102), we get a palindrome (5524444255).

The spelling of 2012312153 in words is "two billion, twelve million, three hundred twelve thousand, one hundred fifty-three".