1101121303 has 4 divisors (see below), whose sum is σ = 1106886528. Its totient is φ = 1095356080.

The previous prime is 1101121279. The next prime is 1101121337. The reversal of 1101121303 is 3031211011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3031211011 = 8179 ⋅370609.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1101121303 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 (1101121363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2882326 + ... + 2882707.

It is an arithmetic number, because the mean of its divisors is an integer number (276721632).

Almost surely, 2^1101121303 is an apocalyptic number.

1101121303 is a deficient number, since it is larger than the sum of its proper divisors (5765225).

1101121303 is an equidigital number, since it uses as much as digits as its factorization.

1101121303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5765224.

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

The square root of 1101121303 is about 33183.1478765954. The cubic root of 1101121303 is about 1032.6307535496.

Adding to 1101121303 its reverse (3031211011), we get a palindrome (4132332314).

The spelling of 1101121303 in words is "one billion, one hundred one million, one hundred twenty-one thousand, three hundred three".