1233111122320 has 160 divisors (see below), whose sum is σ = 3577150262016. Its totient is φ = 384052838400.

The previous prime is 1233111122281. The next prime is 1233111122381. The reversal of 1233111122320 is 232211113321.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 1233111122291 and 1233111122300.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8061592 + ... + 8213128.

Almost surely, 2^{1233111122320} is an apocalyptic number.

1233111122320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1233111122320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1788575131008).

1233111122320 is an abundant number, since it is smaller than the sum of its proper divisors (2344039139696).

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

1233111122320 is a wasteful number, since it uses less digits than its factorization.

1233111122320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152889 (or 152883 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1233111122320 its reverse (232211113321), we get a palindrome (1465322235641).

The spelling of 1233111122320 in words is "one trillion, two hundred thirty-three billion, one hundred eleven million, one hundred twenty-two thousand, three hundred twenty".