31212103023210 has 16 divisors (see below), whose sum is σ = 74909047255776. Its totient is φ = 8323227472848.

The previous prime is 31212103023203. The next prime is 31212103023221. The reversal of 31212103023210 is 1232030121213.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 520201717024 + ... + 520201717083.

It is an arithmetic number, because the mean of its divisors is an integer number (4681815453486).

Almost surely, 2^{31212103023210} is an apocalyptic number.

31212103023210 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31212103023210 is an abundant number, since it is smaller than the sum of its proper divisors (43696944232566).

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

31212103023210 is a wasteful number, since it uses less digits than its factorization.

31212103023210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040403434117.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 31212103023210 its reverse (1232030121213), we get a palindrome (32444133144423).

The spelling of 31212103023210 in words is "thirty-one trillion, two hundred twelve billion, one hundred three million, twenty-three thousand, two hundred ten".