31102212203393 has 2 divisors, whose sum is σ = 31102212203394. Its totient is φ = 31102212203392.

The previous prime is 31102212203357. The next prime is 31102212203459. The reversal of 31102212203393 is 39330221220113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29271259525264 + 1830952678129 = 5410292^2 + 1353127^2 .

It is a cyclic number.

It is not a de Polignac number, because 31102212203393 - 2⁶ = 31102212203329 is a prime.

It is not a weakly prime, because it can be changed into another prime (31102212203353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15551106101696 + 15551106101697.

It is an arithmetic number, because the mean of its divisors is an integer number (15551106101697).

Almost surely, 2^{31102212203393} is an apocalyptic number.

It is an amenable number.

31102212203393 is a deficient number, since it is larger than the sum of its proper divisors (1).

31102212203393 is an equidigital number, since it uses as much as digits as its factorization.

31102212203393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 32.

The spelling of 31102212203393 in words is "thirty-one trillion, one hundred two billion, two hundred twelve million, two hundred three thousand, three hundred ninety-three".