1253003312000 has 128 divisors (see below), whose sum is σ = 3398487187680. Its totient is φ = 455637504000.

The previous prime is 1253003311993. The next prime is 1253003312047. The reversal of 1253003312000 is 2133003521.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3383669 + ... + 3735668.

Almost surely, 2^{1253003312000} is an apocalyptic number.

1253003312000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1253003312000 is an abundant number, since it is smaller than the sum of its proper divisors (2145483875680).

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

1253003312000 is an equidigital number, since it uses as much as digits as its factorization.

1253003312000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7119377 (or 7119355 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

Adding to 1253003312000 its reverse (2133003521), we get a palindrome (1255136315521).

The spelling of 1253003312000 in words is "one trillion, two hundred fifty-three billion, three million, three hundred twelve thousand".