210131319998 has 4 divisors (see below), whose sum is σ = 315196980000. Its totient is φ = 105065659998.

The previous prime is 210131319997. The next prime is 210131320043. The reversal of 210131319998 is 899913131012.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210131319997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52532829998 + ... + 52532830001.

It is an arithmetic number, because the mean of its divisors is an integer number (78799245000).

Almost surely, 2^210131319998 is an apocalyptic number.

210131319998 is a deficient number, since it is larger than the sum of its proper divisors (105065660002).

210131319998 is a wasteful number, since it uses less digits than its factorization.

210131319998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105065660001.

The product of its (nonzero) digits is 104976, while the sum is 47.

The spelling of 210131319998 in words is "two hundred ten billion, one hundred thirty-one million, three hundred nineteen thousand, nine hundred ninety-eight".