312002111203 has 4 divisors (see below), whose sum is σ = 312003679680. Its totient is φ = 312000542728.

The previous prime is 312002111189. The next prime is 312002111207. The reversal of 312002111203 is 302111200213.

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-312002111203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312002111207) 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, 433600 + ... + 901117.

It is an arithmetic number, because the mean of its divisors is an integer number (78000919920).

Almost surely, 2^312002111203 is an apocalyptic number.

312002111203 is a deficient number, since it is larger than the sum of its proper divisors (1568477).

312002111203 is a wasteful number, since it uses less digits than its factorization.

312002111203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1568476.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 312002111203 its reverse (302111200213), we get a palindrome (614113311416).

The spelling of 312002111203 in words is "three hundred twelve billion, two million, one hundred eleven thousand, two hundred three".