1310201020111 has 4 divisors (see below), whose sum is σ = 1310338989072. Its totient is φ = 1310063051152.

The previous prime is 1310201020091. The next prime is 1310201020157. The reversal of 1310201020111 is 1110201020131.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1310201020111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1310201020091 and 1310201020100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310201027111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68970235 + ... + 68989228.

It is an arithmetic number, because the mean of its divisors is an integer number (327584747268).

Almost surely, 2^{1310201020111} is an apocalyptic number.

1310201020111 is a deficient number, since it is larger than the sum of its proper divisors (137968961).

1310201020111 is an equidigital number, since it uses as much as digits as its factorization.

1310201020111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137968960.

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

Adding to 1310201020111 its reverse (1110201020131), we get a palindrome (2420402040242).

The spelling of 1310201020111 in words is "one trillion, three hundred ten billion, two hundred one million, twenty thousand, one hundred eleven".