67105211321131 has 2 divisors, whose sum is σ = 67105211321132. Its totient is φ = 67105211321130.

The previous prime is 67105211321111. The next prime is 67105211321201. The reversal of 67105211321131 is 13112311250176.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67105211321131 is a prime.

It is a super-2 number, since 2×67105211321131² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (67105211321101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33552605660565 + 33552605660566.

It is an arithmetic number, because the mean of its divisors is an integer number (33552605660566).

Almost surely, 2^{67105211321131} is an apocalyptic number.

67105211321131 is a deficient number, since it is larger than the sum of its proper divisors (1).

67105211321131 is an equidigital number, since it uses as much as digits as its factorization.

67105211321131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 34.

The spelling of 67105211321131 in words is "sixty-seven trillion, one hundred five billion, two hundred eleven million, three hundred twenty-one thousand, one hundred thirty-one".