1233031331320 has 64 divisors (see below), whose sum is σ = 2841779128320. Its totient is φ = 481243641984.

The previous prime is 1233031331281. The next prime is 1233031331377. The reversal of 1233031331320 is 231331303321.

It is a super-2 number, since 2×1233031331320² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1292569 + ... + 2033911.

It is an arithmetic number, because the mean of its divisors is an integer number (44402798880).

Almost surely, 2^{1233031331320} is an apocalyptic number.

1233031331320 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 1233031331320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1420889564160).

1233031331320 is an abundant number, since it is smaller than the sum of its proper divisors (1608747797000).

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

1233031331320 is a wasteful number, since it uses less digits than its factorization.

1233031331320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742364 (or 742360 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 1233031331320 its reverse (231331303321), we get a palindrome (1464362634641).

The spelling of 1233031331320 in words is "one trillion, two hundred thirty-three billion, thirty-one million, three hundred thirty-one thousand, three hundred twenty".