312011422343203 has 16 divisors (see below), whose sum is σ = 358377403708800. Its totient is φ = 268652890010880.

The previous prime is 312011422343191. The next prime is 312011422343209. The reversal of 312011422343203 is 302343224110213.

It is a cyclic number.

It is not a de Polignac number, because 312011422343203 - 2⁵ = 312011422343171 is a prime.

It is a super-2 number, since 2×312011422343203² (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 (312011422343209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179916601 + ... + 181642522.

It is an arithmetic number, because the mean of its divisors is an integer number (22398587731800).

Almost surely, 2^{312011422343203} is an apocalyptic number.

312011422343203 is a deficient number, since it is larger than the sum of its proper divisors (46365981365597).

312011422343203 is a wasteful number, since it uses less digits than its factorization.

312011422343203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361563282.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 312011422343203 its reverse (302343224110213), we get a palindrome (614354646453416).

The spelling of 312011422343203 in words is "three hundred twelve trillion, eleven billion, four hundred twenty-two million, three hundred forty-three thousand, two hundred three".