1101142021 has 8 divisors (see below), whose sum is σ = 1267634880. Its totient is φ = 936945888.

The previous prime is 1101142019. The next prime is 1101142027. The reversal of 1101142021 is 1202411011.

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 1101142021 - 2¹ = 1101142019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1101141992 and 1101142010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101142027) 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, 573151 + ... + 575068.

It is an arithmetic number, because the mean of its divisors is an integer number (158454360).

Almost surely, 2^1101142021 is an apocalyptic number.

It is an amenable number.

1101142021 is a deficient number, since it is larger than the sum of its proper divisors (166492859).

1101142021 is a wasteful number, since it uses less digits than its factorization.

1101142021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1148363.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 1101142021 is about 33183.4600516583. The cubic root of 1101142021 is about 1032.6372299508.

Adding to 1101142021 its reverse (1202411011), we get a palindrome (2303553032).

The spelling of 1101142021 in words is "one billion, one hundred one million, one hundred forty-two thousand, twenty-one".