33130121011 has 24 divisors (see below), whose sum is σ = 37103498880. Its totient is φ = 29537913600.

The previous prime is 33130120987. The next prime is 33130121023. The reversal of 33130121011 is 11012103133.

It is not a de Polignac number, because 33130121011 - 2¹¹ = 33130118963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33130121411) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2828455 + ... + 2840143.

It is an arithmetic number, because the mean of its divisors is an integer number (1545979120).

Almost surely, 2^33130121011 is an apocalyptic number.

33130121011 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

33130121011 is a deficient number, since it is larger than the sum of its proper divisors (3973377869).

33130121011 is a wasteful number, since it uses less digits than its factorization.

33130121011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12287 (or 12274 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 33130121011 its reverse (11012103133), we get a palindrome (44142224144).

The spelling of 33130121011 in words is "thirty-three billion, one hundred thirty million, one hundred twenty-one thousand, eleven".