31100020132 has 24 divisors (see below), whose sum is σ = 55659090816. Its totient is φ = 15198328608.

The previous prime is 31100020103. The next prime is 31100020153. The reversal of 31100020132 is 23102000113.

It is a super-2 number, since 2×31100020132² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24963 + ... + 250645.

It is an arithmetic number, because the mean of its divisors is an integer number (2319128784).

Almost surely, 2^31100020132 is an apocalyptic number.

It is an amenable number.

31100020132 is a deficient number, since it is larger than the sum of its proper divisors (24559070684).

31100020132 is a wasteful number, since it uses less digits than its factorization.

31100020132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226467 (or 226465 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 31100020132 its reverse (23102000113), we get a palindrome (54202020245).

The spelling of 31100020132 in words is "thirty-one billion, one hundred million, twenty thousand, one hundred thirty-two".