1213111133207 has 2 divisors, whose sum is σ = 1213111133208. Its totient is φ = 1213111133206.

The previous prime is 1213111133167. The next prime is 1213111133329. The reversal of 1213111133207 is 7023311113121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1213111133207 - 2²² = 1213106938903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1213111133807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606555566603 + 606555566604.

It is an arithmetic number, because the mean of its divisors is an integer number (606555566604).

Almost surely, 2^{1213111133207} is an apocalyptic number.

1213111133207 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213111133207 is an equidigital number, since it uses as much as digits as its factorization.

1213111133207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 26.

Adding to 1213111133207 its reverse (7023311113121), we get a palindrome (8236422246328).

The spelling of 1213111133207 in words is "one trillion, two hundred thirteen billion, one hundred eleven million, one hundred thirty-three thousand, two hundred seven".