1311223322120 has 32 divisors (see below), whose sum is σ = 3045421912320. Its totient is φ = 507570317760.

The previous prime is 1311223322113. The next prime is 1311223322153. The reversal of 1311223322120 is 212233221131.

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, 528717842 + ... + 528720321.

It is an arithmetic number, because the mean of its divisors is an integer number (95169434760).

Almost surely, 2^{1311223322120} is an apocalyptic number.

1311223322120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1311223322120 is an abundant number, since it is smaller than the sum of its proper divisors (1734198590200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1311223322120 is a wasteful number, since it uses less digits than its factorization.

1311223322120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057438205 (or 1057438201 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1311223322120 its reverse (212233221131), we get a palindrome (1523456543251).

The spelling of 1311223322120 in words is "one trillion, three hundred eleven billion, two hundred twenty-three million, three hundred twenty-two thousand, one hundred twenty".