1211132011337 has 2 divisors, whose sum is σ = 1211132011338. Its totient is φ = 1211132011336.

The previous prime is 1211132011321. The next prime is 1211132011393. The reversal of 1211132011337 is 7331102311121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 918116577856 + 293015433481 = 958184^2 + 541309^2 .

It is a cyclic number.

It is not a de Polignac number, because 1211132011337 - 2⁴ = 1211132011321 is a prime.

It is not a weakly prime, because it can be changed into another prime (1211132071337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605566005668 + 605566005669.

It is an arithmetic number, because the mean of its divisors is an integer number (605566005669).

Almost surely, 2^{1211132011337} is an apocalyptic number.

It is an amenable number.

1211132011337 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211132011337 is an equidigital number, since it uses as much as digits as its factorization.

1211132011337 is an odious number, because the sum of its binary digits is odd.

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

Adding to 1211132011337 its reverse (7331102311121), we get a palindrome (8542234322458).

The spelling of 1211132011337 in words is "one trillion, two hundred eleven billion, one hundred thirty-two million, eleven thousand, three hundred thirty-seven".