921330101 has 4 divisors (see below), whose sum is σ = 922444992. Its totient is φ = 920215212.

The previous prime is 921330097. The next prime is 921330103. The reversal of 921330101 is 101033129.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 101033129 = 29 ⋅3483901.

It is a cyclic number.

It is not a de Polignac number, because 921330101 - 2² = 921330097 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 (921330103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 556205 + ... + 557858.

It is an arithmetic number, because the mean of its divisors is an integer number (230611248).

Almost surely, 2^921330101 is an apocalyptic number.

It is an amenable number.

921330101 is a deficient number, since it is larger than the sum of its proper divisors (1114891).

921330101 is a wasteful number, since it uses less digits than its factorization.

921330101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114890.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 921330101 is about 30353.4199226380. The cubic root of 921330101 is about 973.0573111602.

The spelling of 921330101 in words is "nine hundred twenty-one million, three hundred thirty thousand, one hundred one".