1201113311269 has 2 divisors, whose sum is σ = 1201113311270. Its totient is φ = 1201113311268.

The previous prime is 1201113311267. The next prime is 1201113311347. The reversal of 1201113311269 is 9621133111021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1163151465025 + 37961846244 = 1078495^2 + 194838^2 .

It is a cyclic number.

It is not a de Polignac number, because 1201113311269 - 2¹ = 1201113311267 is a prime.

It is a super-2 number, since 2×1201113311269² (a number of 25 digits) contains 22 as substring.

Together with 1201113311267, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1201113311269.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1201113311267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600556655634 + 600556655635.

It is an arithmetic number, because the mean of its divisors is an integer number (600556655635).

Almost surely, 2^{1201113311269} is an apocalyptic number.

It is an amenable number.

1201113311269 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201113311269 is an equidigital number, since it uses as much as digits as its factorization.

1201113311269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 31.

The spelling of 1201113311269 in words is "one trillion, two hundred one billion, one hundred thirteen million, three hundred eleven thousand, two hundred sixty-nine".