312120012632 has 8 divisors (see below), whose sum is σ = 585225023700. Its totient is φ = 156060006312.

The previous prime is 312120012587. The next prime is 312120012637. The reversal of 312120012632 is 236210021213.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 312120012598 and 312120012607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312120012637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19507500782 + ... + 19507500797.

Almost surely, 2^312120012632 is an apocalyptic number.

It is an amenable number.

312120012632 is a deficient number, since it is larger than the sum of its proper divisors (273105011068).

312120012632 is a wasteful number, since it uses less digits than its factorization.

312120012632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39015001585 (or 39015001581 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 312120012632 its reverse (236210021213), we get a palindrome (548330033845).

The spelling of 312120012632 in words is "three hundred twelve billion, one hundred twenty million, twelve thousand, six hundred thirty-two".