31330031112 has 48 divisors (see below), whose sum is σ = 84900264540. Its totient is φ = 10437424128.

The previous prime is 31330031081. The next prime is 31330031123. The reversal of 31330031112 is 21113003313.

It is a happy number.

31330031112 is a `hidden beast` number, since 313 + 30 + 0 + 311 + 12 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 28789266276 + 2540764836 = 169674^2 + 50406^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5508 + ... + 250380.

Almost surely, 2^31330031112 is an apocalyptic number.

It is an amenable number.

31330031112 is an abundant number, since it is smaller than the sum of its proper divisors (53570233428).

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

31330031112 is a wasteful number, since it uses less digits than its factorization.

31330031112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246662 (or 246655 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 31330031112 its reverse (21113003313), we get a palindrome (52443034425).

The spelling of 31330031112 in words is "thirty-one billion, three hundred thirty million, thirty-one thousand, one hundred twelve".