101231198 has 8 divisors (see below), whose sum is σ = 152939640. Its totient is φ = 50251320.

The previous prime is 101231191. The next prime is 101231227. The reversal of 101231198 is 891132101.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101231191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181793 + ... + 182348.

It is an arithmetic number, because the mean of its divisors is an integer number (19117455).

Almost surely, 2^101231198 is an apocalyptic number.

101231198 is a deficient number, since it is larger than the sum of its proper divisors (51708442).

101231198 is a wasteful number, since it uses less digits than its factorization.

101231198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364282.

The product of its (nonzero) digits is 432, while the sum is 26.

The square root of 101231198 is about 10061.3715764800. The cubic root of 101231198 is about 466.0560236450.

Adding to 101231198 its reverse (891132101), we get a palindrome (992363299).

The spelling of 101231198 in words is "one hundred one million, two hundred thirty-one thousand, one hundred ninety-eight".