1130121311 has 16 divisors (see below), whose sum is σ = 1307996160. Its totient is φ = 965623680.

The previous prime is 1130121281. The next prime is 1130121323. The reversal of 1130121311 is 1131210311.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1130121311 - 2¹⁰ = 1130120287 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 (1130121331) 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, 5255 + ... + 47831.

It is an arithmetic number, because the mean of its divisors is an integer number (81749760).

Almost surely, 2^1130121311 is an apocalyptic number.

1130121311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1130121311 is a deficient number, since it is larger than the sum of its proper divisors (177874849).

1130121311 is a wasteful number, since it uses less digits than its factorization.

1130121311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42734.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 1130121311 is about 33617.2769718191. The cubic root of 1130121311 is about 1041.6177088827.

Adding to 1130121311 its reverse (1131210311), we get a palindrome (2261331622).

The spelling of 1130121311 in words is "one billion, one hundred thirty million, one hundred twenty-one thousand, three hundred eleven".