2012312015 has 32 divisors (see below), whose sum is σ = 2937544704. Its totient is φ = 1291829760.

The previous prime is 2012311999. The next prime is 2012312017. The reversal of 2012312015 is 5102132102.

It is a happy number.

It is not a de Polignac number, because 2012312015 - 2⁴ = 2012311999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2012311984 and 2012312002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012312017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 104792 + ... + 122498.

It is an arithmetic number, because the mean of its divisors is an integer number (91798272).

Almost surely, 2^2012312015 is an apocalyptic number.

2012312015 is a deficient number, since it is larger than the sum of its proper divisors (925232689).

2012312015 is a wasteful number, since it uses less digits than its factorization.

2012312015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17927.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 2012312015 is about 44858.8008644903. The cubic root of 2012312015 is about 1262.5011239411.

Adding to 2012312015 its reverse (5102132102), we get a palindrome (7114444117).

The spelling of 2012312015 in words is "two billion, twelve million, three hundred twelve thousand, fifteen".