2312121123210 has 32 divisors (see below), whose sum is σ = 5619332355840. Its totient is φ = 608761003968.

The previous prime is 2312121123173. The next prime is 2312121123217. The reversal of 2312121123210 is 123211212132.

It is not an unprimeable number, because it can be changed into a prime (2312121123217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 487786897 + ... + 487791636.

It is an arithmetic number, because the mean of its divisors is an integer number (175604136120).

Almost surely, 2^{2312121123210} is an apocalyptic number.

2312121123210 is an abundant number, since it is smaller than the sum of its proper divisors (3307211232630).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2312121123210 is a wasteful number, since it uses less digits than its factorization.

2312121123210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 975578622.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 2312121123210 its reverse (123211212132), we get a palindrome (2435332335342).

The spelling of 2312121123210 in words is "two trillion, three hundred twelve billion, one hundred twenty-one million, one hundred twenty-three thousand, two hundred ten".