31101103140 has 96 divisors (see below), whose sum is σ = 87717168000. Its totient is φ = 8233430016.

The previous prime is 31101103139. The next prime is 31101103177. The reversal of 31101103140 is 4130110113.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 5895544 + ... + 5900816.

It is an arithmetic number, because the mean of its divisors is an integer number (913720500).

Almost surely, 2^31101103140 is an apocalyptic number.

31101103140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31101103140 is an abundant number, since it is smaller than the sum of its proper divisors (56616064860).

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

31101103140 is a wasteful number, since it uses less digits than its factorization.

31101103140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5981 (or 5979 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 31101103140 its reverse (4130110113), we get a palindrome (35231213253).

The spelling of 31101103140 in words is "thirty-one billion, one hundred one million, one hundred three thousand, one hundred forty".