1001992101 has 8 divisors (see below), whose sum is σ = 1457443104. Its totient is φ = 607267920.

The previous prime is 1001992099. The next prime is 1001992109. The reversal of 1001992101 is 1012991001.

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

It is not a de Polignac number, because 1001992101 - 2¹ = 1001992099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001992109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15181666 + ... + 15181731.

It is an arithmetic number, because the mean of its divisors is an integer number (182180388).

Almost surely, 2^1001992101 is an apocalyptic number.

1001992101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1001992101 is a deficient number, since it is larger than the sum of its proper divisors (455451003).

1001992101 is a wasteful number, since it uses less digits than its factorization.

1001992101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30363411.

The product of its (nonzero) digits is 162, while the sum is 24.

The square root of 1001992101 is about 31654.2588129939. The cubic root of 1001992101 is about 1000.6635932133.

The spelling of 1001992101 in words is "one billion, one million, nine hundred ninety-two thousand, one hundred one".