31033122112 has 28 divisors (see below), whose sum is σ = 61591968256. Its totient is φ = 15513886080.

The previous prime is 31033122091. The next prime is 31033122121. The reversal of 31033122112 is 21122133013.

It is a self number, because there is not a number n which added to its sum of digits gives 31033122112.

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, 362683 + ... + 440005.

It is an arithmetic number, because the mean of its divisors is an integer number (2199713152).

Almost surely, 2^31033122112 is an apocalyptic number.

31033122112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31033122112 is a deficient number, since it is larger than the sum of its proper divisors (30558846144).

31033122112 is an equidigital number, since it uses as much as digits as its factorization.

31033122112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83606 (or 83596 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 31033122112 its reverse (21122133013), we get a palindrome (52155255125).

The spelling of 31033122112 in words is "thirty-one billion, thirty-three million, one hundred twenty-two thousand, one hundred twelve".