31440300100 has 72 divisors (see below), whose sum is σ = 75164939136. Its totient is φ = 11319600000.

The previous prime is 31440300079. The next prime is 31440300119. The reversal of 31440300100 is 100304413.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30396 + ... + 252595.

It is an arithmetic number, because the mean of its divisors is an integer number (1043957488).

Almost surely, 2^31440300100 is an apocalyptic number.

It is an amenable number.

31440300100 is an abundant number, since it is smaller than the sum of its proper divisors (43724639036).

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

31440300100 is a wasteful number, since it uses less digits than its factorization.

31440300100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283117 (or 283110 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 31440300100 its reverse (100304413), we get a palindrome (31540604513).

The spelling of 31440300100 in words is "thirty-one billion, four hundred forty million, three hundred thousand, one hundred".