312211241430440 has 96 divisors (see below), whose sum is σ = 772616864305440. Its totient is φ = 113461578088320.

The previous prime is 312211241430359. The next prime is 312211241430449. The reversal of 312211241430440 is 44034142112213.

It is a junction number, because it is equal to n+sod(n) for n = 312211241430397 and 312211241430406.

It is not an unprimeable number, because it can be changed into a prime (312211241430449) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11949062 + ... + 27698421.

It is an arithmetic number, because the mean of its divisors is an integer number (8048092336515).

Almost surely, 2^{312211241430440} is an apocalyptic number.

It is an amenable number.

312211241430440 is an abundant number, since it is smaller than the sum of its proper divisors (460405622875000).

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

312211241430440 is a wasteful number, since it uses less digits than its factorization.

312211241430440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39649143 (or 39649128 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

Adding to 312211241430440 its reverse (44034142112213), we get a palindrome (356245383542653).

The spelling of 312211241430440 in words is "three hundred twelve trillion, two hundred eleven billion, two hundred forty-one million, four hundred thirty thousand, four hundred forty".