31324012112 has 10 divisors (see below), whose sum is σ = 60690273498. Its totient is φ = 15662006048.

The previous prime is 31324012103. The next prime is 31324012117. The reversal of 31324012112 is 21121042313.

It can be written as a sum of positive squares in only one way, i.e., 19205525056 + 12118487056 = 138584^2 + 110084^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31324012117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 978875363 + ... + 978875394.

Almost surely, 2^31324012112 is an apocalyptic number.

It is an amenable number.

31324012112 is a deficient number, since it is larger than the sum of its proper divisors (29366261386).

31324012112 is a wasteful number, since it uses less digits than its factorization.

31324012112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1957750765 (or 1957750759 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 31324012112 its reverse (21121042313), we get a palindrome (52445054425).

The spelling of 31324012112 in words is "thirty-one billion, three hundred twenty-four million, twelve thousand, one hundred twelve".