11211212311310 has 64 divisors (see below), whose sum is σ = 22416582988800. Its totient is φ = 4002960124800.

The previous prime is 11211212311309. The next prime is 11211212311331. The reversal of 11211212311310 is 1311321211211.

It is a super-2 number, since 2×11211212311310² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 1991000 + ... + 5136779.

It is an arithmetic number, because the mean of its divisors is an integer number (350259109200).

Almost surely, 2^{11211212311310} is an apocalyptic number.

11211212311310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11211212311310 is a deficient number, since it is larger than the sum of its proper divisors (11205370677490).

11211212311310 is a wasteful number, since it uses less digits than its factorization.

11211212311310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7128057.

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 11211212311310 its reverse (1311321211211), we get a palindrome (12522533522521).

The spelling of 11211212311310 in words is "eleven trillion, two hundred eleven billion, two hundred twelve million, three hundred eleven thousand, three hundred ten".