31212000200100 has 36 divisors (see below), whose sum is σ = 90306720579824. Its totient is φ = 8323200053280.

The previous prime is 31212000200093. The next prime is 31212000200113. The reversal of 31212000200100 is 100200021213.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52020000034 + ... + 52020000633.

Almost surely, 2^{31212000200100} is an apocalyptic number.

31212000200100 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31212000200100 is an abundant number, since it is smaller than the sum of its proper divisors (59094720379724).

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

31212000200100 is a wasteful number, since it uses less digits than its factorization.

31212000200100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104040000684 (or 104040000677 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 31212000200100 its reverse (100200021213), we get a palindrome (31312200221313).

The spelling of 31212000200100 in words is "thirty-one trillion, two hundred twelve billion, two hundred thousand, one hundred".