31212020100010 has 32 divisors (see below), whose sum is σ = 56787593571072. Its totient is φ = 12350483745600.

The previous prime is 31212020099983. The next prime is 31212020100011. The reversal of 31212020100010 is 1000102021213.

It is not an unprimeable number, because it can be changed into a prime (31212020100011) 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, 20056002 + ... + 21556141.

It is an arithmetic number, because the mean of its divisors is an integer number (1774612299096).

Almost surely, 2^{31212020100010} is an apocalyptic number.

31212020100010 is a deficient number, since it is larger than the sum of its proper divisors (25575573471062).

31212020100010 is a wasteful number, since it uses less digits than its factorization.

31212020100010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41612958.

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

Adding to 31212020100010 its reverse (1000102021213), we get a palindrome (32212122121223).

The spelling of 31212020100010 in words is "thirty-one trillion, two hundred twelve billion, twenty million, one hundred thousand, ten".