310143242000021 has 4 divisors (see below), whose sum is σ = 310208411839200. Its totient is φ = 310078072160844.

The previous prime is 310143241999933. The next prime is 310143242000051. The reversal of 310143242000021 is 120000242341013.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-310143242000021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (310143242000051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32584912451 + ... + 32584921968.

It is an arithmetic number, because the mean of its divisors is an integer number (77552102959800).

Almost surely, 2^{310143242000021} is an apocalyptic number.

It is an amenable number.

310143242000021 is a deficient number, since it is larger than the sum of its proper divisors (65169839179).

310143242000021 is an equidigital number, since it uses as much as digits as its factorization.

310143242000021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65169839178.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 310143242000021 its reverse (120000242341013), we get a palindrome (430143484341034).

The spelling of 310143242000021 in words is "three hundred ten trillion, one hundred forty-three billion, two hundred forty-two million, twenty-one", and thus it is an aban number.