1101021473 has 8 divisors (see below), whose sum is σ = 1169096328. Its totient is φ = 1033314304.

The previous prime is 1101021457. The next prime is 1101021491. The reversal of 1101021473 is 3741201011.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 617373409 + 483648064 = 24847^2 + 21992^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1101021473 - 2⁴ = 1101021457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1101021073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85736 + ... + 97737.

It is an arithmetic number, because the mean of its divisors is an integer number (146137041).

Almost surely, 2^1101021473 is an apocalyptic number.

It is an amenable number.

1101021473 is a deficient number, since it is larger than the sum of its proper divisors (68074855).

1101021473 is a wasteful number, since it uses less digits than its factorization.

1101021473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183843.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 1101021473 is about 33181.6436151074. The cubic root of 1101021473 is about 1032.5995457728.

Adding to 1101021473 its reverse (3741201011), we get a palindrome (4842222484).

The spelling of 1101021473 in words is "one billion, one hundred one million, twenty-one thousand, four hundred seventy-three".