213031031023333 has 2 divisors, whose sum is σ = 213031031023334. Its totient is φ = 213031031023332.

The previous prime is 213031031023303. The next prime is 213031031023337. The reversal of 213031031023333 is 333320130130312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132821775677889 + 80209255345444 = 11524833^2 + 8955962^2 .

It is a cyclic number.

It is not a de Polignac number, because 213031031023333 - 2⁵ = 213031031023301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213031031023337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106515515511666 + 106515515511667.

It is an arithmetic number, because the mean of its divisors is an integer number (106515515511667).

Almost surely, 2^{213031031023333} is an apocalyptic number.

It is an amenable number.

213031031023333 is a deficient number, since it is larger than the sum of its proper divisors (1).

213031031023333 is an equidigital number, since it uses as much as digits as its factorization.

213031031023333 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8748, while the sum is 28.

Adding to 213031031023333 its reverse (333320130130312), we get a palindrome (546351161153645).

The spelling of 213031031023333 in words is "two hundred thirteen trillion, thirty-one billion, thirty-one million, twenty-three thousand, three hundred thirty-three".