101069921 has 2 divisors, whose sum is σ = 101069922. Its totient is φ = 101069920.

The previous prime is 101069867. The next prime is 101069939. The reversal of 101069921 is 129960101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71639296 + 29430625 = 8464^2 + 5425^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101069921 is a prime.

It is not a weakly prime, because it can be changed into another prime (101062921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50534960 + 50534961.

It is an arithmetic number, because the mean of its divisors is an integer number (50534961).

Almost surely, 2^101069921 is an apocalyptic number.

It is an amenable number.

101069921 is a deficient number, since it is larger than the sum of its proper divisors (1).

101069921 is an equidigital number, since it uses as much as digits as its factorization.

101069921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 29.

The square root of 101069921 is about 10053.3537190333. The cubic root of 101069921 is about 465.8083922488.

The spelling of 101069921 in words is "one hundred one million, sixty-nine thousand, nine hundred twenty-one".