12100831 has 8 divisors (see below), whose sum is σ = 12298320. Its totient is φ = 11905152.

The previous prime is 12100817. The next prime is 12100843. The reversal of 12100831 is 13800121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12100831 is a prime.

It is a super-2 number, since 2×12100831² = 292860221781122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19240 + ... + 19858.

It is an arithmetic number, because the mean of its divisors is an integer number (1537290).

Almost surely, 2^12100831 is an apocalyptic number.

12100831 is a deficient number, since it is larger than the sum of its proper divisors (197489).

12100831 is a wasteful number, since it uses less digits than its factorization.

12100831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 12100831 is about 3478.6248719861. The cubic root of 12100831 is about 229.5822979529.

Adding to 12100831 its reverse (13800121), we get a palindrome (25900952).

The spelling of 12100831 in words is "twelve million, one hundred thousand, eight hundred thirty-one".