31212331012203 has 32 divisors (see below), whose sum is σ = 45425028821760. Its totient is φ = 18906036034560.

The previous prime is 31212331012189. The next prime is 31212331012363. The reversal of 31212331012203 is 30221013321213.

It is not a de Polignac number, because 31212331012203 - 2¹⁸ = 31212330750059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31212331011203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 488202343 + ... + 488266271.

It is an arithmetic number, because the mean of its divisors is an integer number (1419532150680).

Almost surely, 2^{31212331012203} is an apocalyptic number.

31212331012203 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

31212331012203 is a deficient number, since it is larger than the sum of its proper divisors (14212697809557).

31212331012203 is a wasteful number, since it uses less digits than its factorization.

31212331012203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71947.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 31212331012203 its reverse (30221013321213), we get a palindrome (61433344333416).

The spelling of 31212331012203 in words is "thirty-one trillion, two hundred twelve billion, three hundred thirty-one million, twelve thousand, two hundred three".