31100310040140 has 144 divisors (see below), whose sum is σ = 106725373896960. Its totient is φ = 7539469087680.

The previous prime is 31100310039991. The next prime is 31100310040271. The reversal of 31100310040140 is 4104001300113.

31100310040140 is a `hidden beast` number, since 311 + 0 + 0 + 310 + 0 + 4 + 0 + 1 + 40 = 666.

It is a super-2 number, since 2×31100310040140² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 290821120 + ... + 290928039.

It is an arithmetic number, because the mean of its divisors is an integer number (741148429840).

Almost surely, 2^{31100310040140} is an apocalyptic number.

31100310040140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31100310040140 is an abundant number, since it is smaller than the sum of its proper divisors (75625063856820).

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

31100310040140 is a wasteful number, since it uses less digits than its factorization.

31100310040140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581749194 (or 581749180 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 31100310040140 its reverse (4104001300113), we get a palindrome (35204311340253).

The spelling of 31100310040140 in words is "thirty-one trillion, one hundred billion, three hundred ten million, forty thousand, one hundred forty".