31005441132 has 24 divisors (see below), whose sum is σ = 72350294016. Its totient is φ = 10334537808.

The previous prime is 31005441121. The next prime is 31005441133. The reversal of 31005441132 is 23114450013.

It is a happy number.

It is a super-2 number, since 2×31005441132² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31005441133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166933 + ... + 299795.

It is an arithmetic number, because the mean of its divisors is an integer number (3014595584).

Almost surely, 2^31005441132 is an apocalyptic number.

It is an amenable number.

31005441132 is an abundant number, since it is smaller than the sum of its proper divisors (41344852884).

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

31005441132 is a wasteful number, since it uses less digits than its factorization.

31005441132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152317 (or 152315 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 31005441132 its reverse (23114450013), we get a palindrome (54119891145).

The spelling of 31005441132 in words is "thirty-one billion, five million, four hundred forty-one thousand, one hundred thirty-two".