312211332004240 has 40 divisors (see below), whose sum is σ = 727115447099448. Its totient is φ = 124673934919680.

The previous prime is 312211332004237. The next prime is 312211332004241. The reversal of 312211332004240 is 42400233112213.

It can be written as a sum of positive squares in 4 ways, for example, as 76226309869824 + 235985022134416 = 8730768^2 + 15361804^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 312211332004199 and 312211332004208.

It is not an unprimeable number, because it can be changed into a prime (312211332004241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3290544171 + ... + 3290639050.

Almost surely, 2^{312211332004240} is an apocalyptic number.

It is an amenable number.

312211332004240 is an abundant number, since it is smaller than the sum of its proper divisors (414904115095208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312211332004240 is a wasteful number, since it uses less digits than its factorization.

312211332004240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6581183827 (or 6581183821 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 312211332004240 its reverse (42400233112213), we get a palindrome (354611565116453).

The spelling of 312211332004240 in words is "three hundred twelve trillion, two hundred eleven billion, three hundred thirty-two million, four thousand, two hundred forty".