1201135111237 has 2 divisors, whose sum is σ = 1201135111238. Its totient is φ = 1201135111236.

The previous prime is 1201135111229. The next prime is 1201135111249. The reversal of 1201135111237 is 7321115311021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1119842267076 + 81292844161 = 1058226^2 + 285119^2 .

It is an emirp because it is prime and its reverse (7321115311021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1201135111237 - 2³ = 1201135111229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1201135111937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600567555618 + 600567555619.

It is an arithmetic number, because the mean of its divisors is an integer number (600567555619).

Almost surely, 2^{1201135111237} is an apocalyptic number.

It is an amenable number.

1201135111237 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201135111237 is an equidigital number, since it uses as much as digits as its factorization.

1201135111237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1260, while the sum is 28.

The spelling of 1201135111237 in words is "one trillion, two hundred one billion, one hundred thirty-five million, one hundred eleven thousand, two hundred thirty-seven".