4312033661361 has 32 divisors (see below), whose sum is σ = 6206952960000. Its totient is φ = 2654574043968.

The previous prime is 4312033661357. The next prime is 4312033661363. The reversal of 4312033661361 is 1631663302134.

It is a happy number.

It is not a de Polignac number, because 4312033661361 - 2² = 4312033661357 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4312033661363) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17564940 + ... + 17808738.

It is an arithmetic number, because the mean of its divisors is an integer number (193967280000).

Almost surely, 2^{4312033661361} is an apocalyptic number.

It is an amenable number.

4312033661361 is a deficient number, since it is larger than the sum of its proper divisors (1894919298639).

4312033661361 is a wasteful number, since it uses less digits than its factorization.

4312033661361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252693.

The product of its (nonzero) digits is 139968, while the sum is 39.

Adding to 4312033661361 its reverse (1631663302134), we get a palindrome (5943696963495).

The spelling of 4312033661361 in words is "four trillion, three hundred twelve billion, thirty-three million, six hundred sixty-one thousand, three hundred sixty-one".