1021541101 has 16 divisors (see below), whose sum is σ = 1237628160. Its totient is φ = 823115520.

The previous prime is 1021541093. The next prime is 1021541107. The reversal of 1021541101 is 1011451201.

It is not a de Polignac number, because 1021541101 - 2³ = 1021541093 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 (1021541107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104691 + ... + 114031.

It is an arithmetic number, because the mean of its divisors is an integer number (77351760).

Almost surely, 2^1021541101 is an apocalyptic number.

It is an amenable number.

1021541101 is a deficient number, since it is larger than the sum of its proper divisors (216087059).

1021541101 is an equidigital number, since it uses as much as digits as its factorization.

1021541101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10284.

The product of its (nonzero) digits is 40, while the sum is 16.

The square root of 1021541101 is about 31961.5566110288. The cubic root of 1021541101 is about 1007.1294176118.

Adding to 1021541101 its reverse (1011451201), we get a palindrome (2032992302).

The spelling of 1021541101 in words is "one billion, twenty-one million, five hundred forty-one thousand, one hundred one".