231093541900 has 144 divisors (see below), whose sum is σ = 566654856768. Its totient is φ = 81164160000.

The previous prime is 231093541897. The next prime is 231093541901. The reversal of 231093541900 is 9145390132.

It is a super-2 number, since 2×231093541900² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 231093541900.

It is not an unprimeable number, because it can be changed into a prime (231093541901) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5390550 + ... + 5433250.

It is an arithmetic number, because the mean of its divisors is an integer number (3935103172).

Almost surely, 2^231093541900 is an apocalyptic number.

231093541900 is a gapful number since it is divisible by the number (20) 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 231093541900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283327428384).

231093541900 is an abundant number, since it is smaller than the sum of its proper divisors (335561314868).

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

231093541900 is a wasteful number, since it uses less digits than its factorization.

231093541900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42932 (or 42925 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 37.

The spelling of 231093541900 in words is "two hundred thirty-one billion, ninety-three million, five hundred forty-one thousand, nine hundred".