31230203243100 has 144 divisors (see below), whose sum is σ = 91464822230880. Its totient is φ = 8226551808000.

The previous prime is 31230203243027. The next prime is 31230203243131. The reversal of 31230203243100 is 134230203213.

It is a super-3 number, since 3×31230203243100³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11929716 + ... + 14310084.

Almost surely, 2^{31230203243100} is an apocalyptic number.

31230203243100 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31230203243100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45732411115440).

31230203243100 is an abundant number, since it is smaller than the sum of its proper divisors (60234618987780).

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

31230203243100 is a wasteful number, since it uses less digits than its factorization.

31230203243100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2380920 (or 2380913 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 31230203243100 its reverse (134230203213), we get a palindrome (31364433446313).

The spelling of 31230203243100 in words is "thirty-one trillion, two hundred thirty billion, two hundred three million, two hundred forty-three thousand, one hundred".