1253043453340 has 24 divisors (see below), whose sum is σ = 3007304288352. Its totient is φ = 429614898240.

The previous prime is 1253043453313. The next prime is 1253043453367. The reversal of 1253043453340 is 433543403521.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1253043453313) and next prime (1253043453367).

It is a self number, because there is not a number n which added to its sum of digits gives 1253043453340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4475155051 + ... + 4475155330.

It is an arithmetic number, because the mean of its divisors is an integer number (125304345348).

Almost surely, 2^{1253043453340} is an apocalyptic number.

1253043453340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1253043453340 is an abundant number, since it is smaller than the sum of its proper divisors (1754260835012).

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

1253043453340 is a wasteful number, since it uses less digits than its factorization.

1253043453340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8950310397 (or 8950310395 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 37.

Adding to 1253043453340 its reverse (433543403521), we get a palindrome (1686586856861).

The spelling of 1253043453340 in words is "one trillion, two hundred fifty-three billion, forty-three million, four hundred fifty-three thousand, three hundred forty".