1101203421 has 16 divisors (see below), whose sum is σ = 1519902720. Its totient is φ = 708453360.

The previous prime is 1101203401. The next prime is 1101203431. The reversal of 1101203421 is 1243021011.

It is not a de Polignac number, because 1101203421 - 2⁹ = 1101202909 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1101203421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101203401) 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, 16896 + ... + 49878.

It is an arithmetic number, because the mean of its divisors is an integer number (94993920).

Almost surely, 2^1101203421 is an apocalyptic number.

It is an amenable number.

1101203421 is a deficient number, since it is larger than the sum of its proper divisors (418699299).

1101203421 is a wasteful number, since it uses less digits than its factorization.

1101203421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33376.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1101203421 is about 33184.3851984634. The cubic root of 1101203421 is about 1032.6564229783.

Adding to 1101203421 its reverse (1243021011), we get a palindrome (2344224432).

The spelling of 1101203421 in words is "one billion, one hundred one million, two hundred three thousand, four hundred twenty-one".