31012041984 has 432 divisors, whose sum is σ = 110281812480. Its totient is φ = 7629189120.

The previous prime is 31012041967. The next prime is 31012042027. The reversal of 31012041984 is 48914021013.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7863117 + ... + 7867059.

Almost surely, 2^31012041984 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31012041984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55140906240).

31012041984 is an abundant number, since it is smaller than the sum of its proper divisors (79269770496).

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

31012041984 is a wasteful number, since it uses less digits than its factorization.

31012041984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4006 (or 3985 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

Adding to 31012041984 its reverse (48914021013), we get a palindrome (79926062997).

The spelling of 31012041984 in words is "thirty-one billion, twelve million, forty-one thousand, nine hundred eighty-four".