312203021020043 has 4 divisors (see below), whose sum is σ = 312288861832320. Its totient is φ = 312117180207768.

The previous prime is 312203021020031. The next prime is 312203021020057. The reversal of 312203021020043 is 340020120302213.

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

It is a cyclic number.

It is not a de Polignac number, because 312203021020043 - 2⁴ = 312203021020027 is a prime.

It is a super-2 number, since 2×312203021020043² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312203021520043) 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, 42920400683 + ... + 42920407956.

It is an arithmetic number, because the mean of its divisors is an integer number (78072215458080).

Almost surely, 2^{312203021020043} is an apocalyptic number.

312203021020043 is a deficient number, since it is larger than the sum of its proper divisors (85840812277).

312203021020043 is an equidigital number, since it uses as much as digits as its factorization.

312203021020043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85840812276.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 312203021020043 its reverse (340020120302213), we get a palindrome (652223141322256).

The spelling of 312203021020043 in words is "three hundred twelve trillion, two hundred three billion, twenty-one million, twenty thousand, forty-three".