31313234100 has 36 divisors (see below), whose sum is σ = 90599624864. Its totient is φ = 8350195680.

The previous prime is 31313234089. The next prime is 31313234131. The reversal of 31313234100 is 143231313.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52188424 + ... + 52189023.

Almost surely, 2^31313234100 is an apocalyptic number.

31313234100 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31313234100 is an abundant number, since it is smaller than the sum of its proper divisors (59286390764).

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

31313234100 is a wasteful number, since it uses less digits than its factorization.

31313234100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104377464 (or 104377457 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 31313234100 its reverse (143231313), we get a palindrome (31456465413).

The spelling of 31313234100 in words is "thirty-one billion, three hundred thirteen million, two hundred thirty-four thousand, one hundred".