1311101010202 has 4 divisors (see below), whose sum is σ = 1966651515306. Its totient is φ = 655550505100.

The previous prime is 1311101010187. The next prime is 1311101010257. The reversal of 1311101010202 is 2020101011131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 695204096521 + 615896913681 = 833789^2 + 784791^2 .

It is a super-3 number, since 3×1311101010202³ (a number of 37 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327775252549 + ... + 327775252552.

Almost surely, 2^{1311101010202} is an apocalyptic number.

1311101010202 is a deficient number, since it is larger than the sum of its proper divisors (655550505104).

1311101010202 is an equidigital number, since it uses as much as digits as its factorization.

1311101010202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655550505103.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 1311101010202 its reverse (2020101011131), we get a palindrome (3331202021333).

The spelling of 1311101010202 in words is "one trillion, three hundred eleven billion, one hundred one million, ten thousand, two hundred two".