33131221011103 has 2 divisors, whose sum is σ = 33131221011104. Its totient is φ = 33131221011102.

The previous prime is 33131221011043. The next prime is 33131221011137. The reversal of 33131221011103 is 30111012213133.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 33131221011103 - 2³³ = 33122631076511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33131221011193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16565610505551 + 16565610505552.

It is an arithmetic number, because the mean of its divisors is an integer number (16565610505552).

Almost surely, 2^{33131221011103} is an apocalyptic number.

33131221011103 is a deficient number, since it is larger than the sum of its proper divisors (1).

33131221011103 is an equidigital number, since it uses as much as digits as its factorization.

33131221011103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 33131221011103 its reverse (30111012213133), we get a palindrome (63242233224236).

The spelling of 33131221011103 in words is "thirty-three trillion, one hundred thirty-one billion, two hundred twenty-one million, eleven thousand, one hundred three".