1233550553320 has 32 divisors (see below), whose sum is σ = 2775822726600. Its totient is φ = 493360846848.

The previous prime is 1233550553317. The next prime is 1233550553321. The reversal of 1233550553320 is 233550553321.

It can be written as a sum of positive squares in 4 ways, for example, as 439815670596 + 793734882724 = 663186^2 + 890918^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1233550553320.

It is not an unprimeable number, because it can be changed into a prime (1233550553321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1518129 + ... + 2184448.

Almost surely, 2^{1233550553320} is an apocalyptic number.

1233550553320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1233550553320 is an abundant number, since it is smaller than the sum of its proper divisors (1542272173280).

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

1233550553320 is a wasteful number, since it uses less digits than its factorization.

1233550553320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3710917 (or 3710913 counting only the distinct ones).

The product of its (nonzero) digits is 202500, while the sum is 37.

Subtracting from 1233550553320 its reverse (233550553321), we obtain a palindrome (999999999999).

The spelling of 1233550553320 in words is "one trillion, two hundred thirty-three billion, five hundred fifty million, five hundred fifty-three thousand, three hundred twenty".