1311223423310 has 16 divisors (see below), whose sum is σ = 2388638334096. Its totient is φ = 518170219968.

The previous prime is 1311223423309. The next prime is 1311223423333. The reversal of 1311223423310 is 133243221131.

It is a happy number.

It is a super-2 number, since 2×1311223423310² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1311223423310.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 789892799 + ... + 789894458.

It is an arithmetic number, because the mean of its divisors is an integer number (149289895881).

Almost surely, 2^{1311223423310} is an apocalyptic number.

1311223423310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1311223423310 is a deficient number, since it is larger than the sum of its proper divisors (1077414910786).

1311223423310 is a wasteful number, since it uses less digits than its factorization.

1311223423310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1579787347.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 1311223423310 its reverse (133243221131), we get a palindrome (1444466644441).

The spelling of 1311223423310 in words is "one trillion, three hundred eleven billion, two hundred twenty-three million, four hundred twenty-three thousand, three hundred ten".