1053203131999 has 4 divisors (see below), whose sum is σ = 1077696228136. Its totient is φ = 1028710035864.

The previous prime is 1053203131993. The next prime is 1053203132063. The reversal of 1053203131999 is 9991313023501.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1053203131999 is a prime.

It is a super-4 number, since 4×1053203131999⁴ (a number of 49 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3, 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1053203131993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12246548004 + ... + 12246548089.

It is an arithmetic number, because the mean of its divisors is an integer number (269424057034).

Almost surely, 2^{1053203131999} is an apocalyptic number.

1053203131999 is a deficient number, since it is larger than the sum of its proper divisors (24493096137).

1053203131999 is an equidigital number, since it uses as much as digits as its factorization.

1053203131999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24493096136.

The product of its (nonzero) digits is 196830, while the sum is 46.

The spelling of 1053203131999 in words is "one trillion, fifty-three billion, two hundred three million, one hundred thirty-one thousand, nine hundred ninety-nine".