312130251632 has 20 divisors (see below), whose sum is σ = 615002404440. Its totient is φ = 153419953728.

The previous prime is 312130251619. The next prime is 312130251689. The reversal of 312130251632 is 236152031213.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 312130251595 and 312130251604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165322283 + ... + 165324170.

It is an arithmetic number, because the mean of its divisors is an integer number (30750120222).

Almost surely, 2^312130251632 is an apocalyptic number.

It is an amenable number.

312130251632 is a deficient number, since it is larger than the sum of its proper divisors (302872152808).

312130251632 is a wasteful number, since it uses less digits than its factorization.

312130251632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330646520 (or 330646514 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

Adding to 312130251632 its reverse (236152031213), we get a palindrome (548282282845).

The spelling of 312130251632 in words is "three hundred twelve billion, one hundred thirty million, two hundred fifty-one thousand, six hundred thirty-two".