312321320030 has 16 divisors (see below), whose sum is σ = 564009581520. Its totient is φ = 124521593472.

The previous prime is 312321320029. The next prime is 312321320053. The reversal of 312321320030 is 30023123213.

It is a junction number, because it is equal to n+sod(n) for n = 312321319984 and 312321320011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50863595 + ... + 50869734.

It is an arithmetic number, because the mean of its divisors is an integer number (35250598845).

Almost surely, 2^312321320030 is an apocalyptic number.

312321320030 is a deficient number, since it is larger than the sum of its proper divisors (251688261490).

312321320030 is a wasteful number, since it uses less digits than its factorization.

312321320030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101733643.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 312321320030 its reverse (30023123213), we get a palindrome (342344443243).

The spelling of 312321320030 in words is "three hundred twelve billion, three hundred twenty-one million, three hundred twenty thousand, thirty".