30131200191 has 8 divisors (see below), whose sum is σ = 40725275440. Its totient is φ = 19812295872.

The previous prime is 30131200123. The next prime is 30131200199. The reversal of 30131200191 is 19100213103.

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

It is not a de Polignac number, because 30131200191 - 2⁷ = 30131200063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30131200199) 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, 68792476 + ... + 68792913.

It is an arithmetic number, because the mean of its divisors is an integer number (5090659430).

Almost surely, 2^30131200191 is an apocalyptic number.

30131200191 is a deficient number, since it is larger than the sum of its proper divisors (10594075249).

30131200191 is a wasteful number, since it uses less digits than its factorization.

30131200191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137585465.

The product of its (nonzero) digits is 162, while the sum is 21.

Adding to 30131200191 its reverse (19100213103), we get a palindrome (49231413294).

The spelling of 30131200191 in words is "thirty billion, one hundred thirty-one million, two hundred thousand, one hundred ninety-one".