1101203311 has 8 divisors (see below), whose sum is σ = 1248327920. Its totient is φ = 962995392.

The previous prime is 1101203309. The next prime is 1101203353. The reversal of 1101203311 is 1133021011.

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

It is not a de Polignac number, because 1101203311 - 2¹ = 1101203309 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1101203291 and 1101203300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101200311) 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, 2228910 + ... + 2229403.

It is an arithmetic number, because the mean of its divisors is an integer number (156040990).

Almost surely, 2^1101203311 is an apocalyptic number.

1101203311 is a deficient number, since it is larger than the sum of its proper divisors (147124609).

1101203311 is a wasteful number, since it uses less digits than its factorization.

1101203311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4458345.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 1101203311 is about 33184.3835410574. The cubic root of 1101203311 is about 1032.6563885941.

Adding to 1101203311 its reverse (1133021011), we get a palindrome (2234224322).

The spelling of 1101203311 in words is "one billion, one hundred one million, two hundred three thousand, three hundred eleven".