312311010313202 has 4 divisors (see below), whose sum is σ = 468466515469806. Its totient is φ = 156155505156600.

The previous prime is 312311010313147. The next prime is 312311010313229. The reversal of 312311010313202 is 202313010113213.

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

It can be written as a sum of positive squares in only one way, i.e., 199261145448121 + 113049864865081 = 14115989^2 + 10632491^2 .

It is a super-2 number, since 2×312311010313202² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78077752578299 + ... + 78077752578302.

Almost surely, 2^{312311010313202} is an apocalyptic number.

312311010313202 is a deficient number, since it is larger than the sum of its proper divisors (156155505156604).

312311010313202 is a wasteful number, since it uses less digits than its factorization.

312311010313202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156155505156603.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 312311010313202 its reverse (202313010113213), we get a palindrome (514624020426415).

The spelling of 312311010313202 in words is "three hundred twelve trillion, three hundred eleven billion, ten million, three hundred thirteen thousand, two hundred two".