312210021032330 has 16 divisors (see below), whose sum is σ = 562205283368904. Its totient is φ = 124833509410560.

The previous prime is 312210021032309. The next prime is 312210021032423. The reversal of 312210021032330 is 33230120012213.

It can be written as a sum of positive squares in 4 ways, for example, as 264175709631289 + 48034311401041 = 16253483^2 + 6930679^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 312210021032296 and 312210021032305.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6312349331 + ... + 6312398790.

Almost surely, 2^{312210021032330} is an apocalyptic number.

312210021032330 is a deficient number, since it is larger than the sum of its proper divisors (249995262336574).

312210021032330 is a wasteful number, since it uses less digits than its factorization.

312210021032330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12624750601.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 312210021032330 its reverse (33230120012213), we get a palindrome (345440141044543).

The spelling of 312210021032330 in words is "three hundred twelve trillion, two hundred ten billion, twenty-one million, thirty-two thousand, three hundred thirty".