312120206354 has 16 divisors (see below), whose sum is σ = 512879160960. Its totient is φ = 141279208560.

The previous prime is 312120206353. The next prime is 312120206369. The reversal of 312120206354 is 453602021213.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (312120206353) 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, 29675249 + ... + 29685764.

It is an arithmetic number, because the mean of its divisors is an integer number (32054947560).

Almost surely, 2^312120206354 is an apocalyptic number.

312120206354 is a deficient number, since it is larger than the sum of its proper divisors (200758954606).

312120206354 is a wasteful number, since it uses less digits than its factorization.

312120206354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59361265.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 312120206354 its reverse (453602021213), we get a palindrome (765722227567).

The spelling of 312120206354 in words is "three hundred twelve billion, one hundred twenty million, two hundred six thousand, three hundred fifty-four".