31212030202213 has 16 divisors (see below), whose sum is σ = 35771767637760. Its totient is φ = 26677518074496.

The previous prime is 31212030202193. The next prime is 31212030202237. The reversal of 31212030202213 is 31220203021213.

It is a cyclic number.

It is not a de Polignac number, because 31212030202213 - 2⁴¹ = 29013006946661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31212030202253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62054331 + ... + 62555287.

It is an arithmetic number, because the mean of its divisors is an integer number (2235735477360).

Almost surely, 2^{31212030202213} is an apocalyptic number.

It is an amenable number.

31212030202213 is a deficient number, since it is larger than the sum of its proper divisors (4559737435547).

31212030202213 is a wasteful number, since it uses less digits than its factorization.

31212030202213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526116.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 31212030202213 its reverse (31220203021213), we get a palindrome (62432233223426).

The spelling of 31212030202213 in words is "thirty-one trillion, two hundred twelve billion, thirty million, two hundred two thousand, two hundred thirteen".