312232243240 has 32 divisors (see below), whose sum is σ = 739497420000. Its totient is φ = 118319586624.

The previous prime is 312232243157. The next prime is 312232243273. The reversal of 312232243240 is 42342232213.

It is a junction number, because it is equal to n+sod(n) for n = 312232243199 and 312232243208.

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, 205415190 + ... + 205416709.

It is an arithmetic number, because the mean of its divisors is an integer number (23109294375).

Almost surely, 2^312232243240 is an apocalyptic number.

It is an amenable number.

312232243240 is an abundant number, since it is smaller than the sum of its proper divisors (427265176760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312232243240 is a wasteful number, since it uses less digits than its factorization.

312232243240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410831929 (or 410831925 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 312232243240 its reverse (42342232213), we get a palindrome (354574475453).

The spelling of 312232243240 in words is "three hundred twelve billion, two hundred thirty-two million, two hundred forty-three thousand, two hundred forty".