31212045221203 has 8 divisors (see below), whose sum is σ = 38913718717440. Its totient is φ = 24321074198280.

The previous prime is 31212045221179. The next prime is 31212045221257. The reversal of 31212045221203 is 30212254021213.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31212045221203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31212045221503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202675618243 + ... + 202675618396.

It is an arithmetic number, because the mean of its divisors is an integer number (4864214839680).

Almost surely, 2^{31212045221203} is an apocalyptic number.

31212045221203 is a deficient number, since it is larger than the sum of its proper divisors (7701673496237).

31212045221203 is a wasteful number, since it uses less digits than its factorization.

31212045221203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405351236657.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 31212045221203 its reverse (30212254021213), we get a palindrome (61424299242416).

The spelling of 31212045221203 in words is "thirty-one trillion, two hundred twelve billion, forty-five million, two hundred twenty-one thousand, two hundred three".