2312121010 has 16 divisors (see below), whose sum is σ = 4171095000. Its totient is φ = 922786816.

The previous prime is 2312120999. The next prime is 2312121011. The reversal of 2312121010 is 101212132.

It can be written as a sum of positive squares in 4 ways, for example, as 1992104689 + 320016321 = 44633^2 + 17889^2 .

It is not an unprimeable number, because it can be changed into a prime (2312121011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252985 + ... + 261964.

Almost surely, 2^2312121010 is an apocalyptic number.

2312121010 is a deficient number, since it is larger than the sum of its proper divisors (1858973990).

2312121010 is a wasteful number, since it uses less digits than its factorization.

2312121010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515405.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 2312121010 is about 48084.5194423320. The cubic root of 2312121010 is about 1322.3208729629.

Adding to 2312121010 its reverse (101212132), we get a palindrome (2413333142).

The spelling of 2312121010 in words is "two billion, three hundred twelve million, one hundred twenty-one thousand, ten".