2312142521 has 8 divisors (see below), whose sum is σ = 2490950280. Its totient is φ = 2133470592.

The previous prime is 2312142457. The next prime is 2312142523. The reversal of 2312142521 is 1252412132.

It can be written as a sum of positive squares in 4 ways, for example, as 30647296 + 2281495225 = 5536^2 + 47765^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2312142521 - 2⁶ = 2312142457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2312142523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2891 + ... + 68063.

It is an arithmetic number, because the mean of its divisors is an integer number (311368785).

Almost surely, 2^2312142521 is an apocalyptic number.

It is an amenable number.

2312142521 is a deficient number, since it is larger than the sum of its proper divisors (178807759).

2312142521 is a wasteful number, since it uses less digits than its factorization.

2312142521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67915.

The product of its digits is 960, while the sum is 23.

The square root of 2312142521 is about 48084.7431208694. The cubic root of 2312142521 is about 1322.3249737223.

Adding to 2312142521 its reverse (1252412132), we get a palindrome (3564554653).

The spelling of 2312142521 in words is "two billion, three hundred twelve million, one hundred forty-two thousand, five hundred twenty-one".