191000211303131 has 8 divisors (see below), whose sum is σ = 202235662440864. Its totient is φ = 179764776231040.

The previous prime is 191000211303127. The next prime is 191000211303191. The reversal of 191000211303131 is 131303112000191.

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

It is a cyclic number.

It is not a de Polignac number, because 191000211303131 - 2² = 191000211303127 is a prime.

It is a super-2 number, since 2×191000211303131² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 191000211303131.

It is not an unprimeable number, because it can be changed into a prime (191000211303191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27547841 + ... + 33776973.

It is an arithmetic number, because the mean of its divisors is an integer number (25279457805108).

Almost surely, 2^{191000211303131} is an apocalyptic number.

191000211303131 is a deficient number, since it is larger than the sum of its proper divisors (11235451137733).

191000211303131 is a wasteful number, since it uses less digits than its factorization.

191000211303131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8032821.

The product of its (nonzero) digits is 486, while the sum is 26.

The spelling of 191000211303131 in words is "one hundred ninety-one trillion, two hundred eleven million, three hundred three thousand, one hundred thirty-one".