1210210101311 has 4 divisors (see below), whose sum is σ = 1228272938712. Its totient is φ = 1192147263912.

The previous prime is 1210210101307. The next prime is 1210210101319. The reversal of 1210210101311 is 1131010120121.

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

It is a cyclic number.

It is not a de Polignac number, because 1210210101311 - 2² = 1210210101307 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210210101319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9031418600 + ... + 9031418733.

It is an arithmetic number, because the mean of its divisors is an integer number (307068234678).

Almost surely, 2^{1210210101311} is an apocalyptic number.

1210210101311 is a deficient number, since it is larger than the sum of its proper divisors (18062837401).

1210210101311 is an equidigital number, since it uses as much as digits as its factorization.

1210210101311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18062837400.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 1210210101311 its reverse (1131010120121), we get a palindrome (2341220221432).

The spelling of 1210210101311 in words is "one trillion, two hundred ten billion, two hundred ten million, one hundred one thousand, three hundred eleven".