1233553101012 has 72 divisors (see below), whose sum is σ = 3254216532840. Its totient is φ = 393492234240.

The previous prime is 1233553100957. The next prime is 1233553101019. The reversal of 1233553101012 is 2101013553321.

1233553101012 is a `hidden beast` number, since 1 + 2 + 3 + 3 + 553 + 1 + 0 + 101 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 185661021456 + 1047892079556 = 430884^2 + 1023666^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1233553101019) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5110189 + ... + 5346132.

It is an arithmetic number, because the mean of its divisors is an integer number (45197451845).

Almost surely, 2^{1233553101012} is an apocalyptic number.

1233553101012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1233553101012 is an abundant number, since it is smaller than the sum of its proper divisors (2020663431828).

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

1233553101012 is a wasteful number, since it uses less digits than its factorization.

1233553101012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10456473 (or 10456468 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

Adding to 1233553101012 its reverse (2101013553321), we get a palindrome (3334566654333).

The spelling of 1233553101012 in words is "one trillion, two hundred thirty-three billion, five hundred fifty-three million, one hundred one thousand, twelve".