189992330302031 has 4 divisors (see below), whose sum is σ = 189992721416112. Its totient is φ = 189991939187952.

The previous prime is 189992330301967. The next prime is 189992330302079. The reversal of 189992330302031 is 130203033299981.

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

It is a cyclic number.

It is not a de Polignac number, because 189992330302031 - 2⁶ = 189992330301967 is a prime.

It is a super-2 number, since 2×189992330302031² (a number of 29 digits) 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 (189992330302331) 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 in 3 ways as a sum of consecutive naturals, for example, 194827475 + ... + 195800228.

It is an arithmetic number, because the mean of its divisors is an integer number (47498180354028).

Almost surely, 2^{189992330302031} is an apocalyptic number.

189992330302031 is a deficient number, since it is larger than the sum of its proper divisors (391114081).

189992330302031 is an equidigital number, since it uses as much as digits as its factorization.

189992330302031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391114080.

The product of its (nonzero) digits is 1889568, while the sum is 53.

The spelling of 189992330302031 in words is "one hundred eighty-nine trillion, nine hundred ninety-two billion, three hundred thirty million, three hundred two thousand, thirty-one".