312242004630661 has 12 divisors (see below), whose sum is σ = 370073504143692. Its totient is φ = 262586268043008.

The previous prime is 312242004630637. The next prime is 312242004630683. The reversal of 312242004630661 is 166036400242213.

It can be written as a sum of positive squares in 2 ways, for example, as 106539431378436 + 205702573252225 = 10321794^2 + 14342335^2 .

It is not a de Polignac number, because 312242004630661 - 2¹³ = 312242004622469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312242004630161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60115901260 + ... + 60115906453.

It is an arithmetic number, because the mean of its divisors is an integer number (30839458678641).

Almost surely, 2^{312242004630661} is an apocalyptic number.

It is an amenable number.

312242004630661 is a deficient number, since it is larger than the sum of its proper divisors (57831499513031).

312242004630661 is a wasteful number, since it uses less digits than its factorization.

312242004630661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120231807780 (or 120231807773 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 40.

Adding to 312242004630661 its reverse (166036400242213), we get a palindrome (478278404872874).

The spelling of 312242004630661 in words is "three hundred twelve trillion, two hundred forty-two billion, four million, six hundred thirty thousand, six hundred sixty-one".