101091013 has 8 divisors (see below), whose sum is σ = 106351200. Its totient is φ = 95949168.

The previous prime is 101090999. The next prime is 101091103. The reversal of 101091013 is 310190101.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-101091013 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 (101091113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27831 + ... + 31252.

It is an arithmetic number, because the mean of its divisors is an integer number (13293900).

Almost surely, 2^101091013 is an apocalyptic number.

It is an amenable number.

101091013 is a deficient number, since it is larger than the sum of its proper divisors (5260187).

101091013 is an equidigital number, since it uses as much as digits as its factorization.

101091013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59171.

The product of its (nonzero) digits is 27, while the sum is 16.

The square root of 101091013 is about 10054.4026674885. The cubic root of 101091013 is about 465.8407927465.

The spelling of 101091013 in words is "one hundred one million, ninety-one thousand, thirteen".