1253343032100 has 144 divisors (see below), whose sum is σ = 4029724789440. Its totient is φ = 334186732800.

The previous prime is 1253343032089. The next prime is 1253343032119. The reversal of 1253343032100 is 12303433521.

1253343032100 is a `hidden beast` number, since 1 + 2 + 5 + 334 + 3 + 0 + 321 + 0 + 0 = 666.

It is a super-2 number, since 2×1253343032100² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 47 ways as a sum of consecutive naturals, for example, 29984215 + ... + 30025985.

Almost surely, 2^{1253343032100} is an apocalyptic number.

1253343032100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1253343032100 is an abundant number, since it is smaller than the sum of its proper divisors (2776381757340).

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

1253343032100 is a wasteful number, since it uses less digits than its factorization.

1253343032100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52907 (or 52894 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

Adding to 1253343032100 its reverse (12303433521), we get a palindrome (1265646465621).

The spelling of 1253343032100 in words is "one trillion, two hundred fifty-three billion, three hundred forty-three million, thirty-two thousand, one hundred".