13121011233 has 48 divisors (see below), whose sum is σ = 21475673856. Its totient is φ = 7939380240.

The previous prime is 13121011231. The next prime is 13121011243. The reversal of 13121011233 is 33211012131.

It is not a de Polignac number, because 13121011233 - 2¹ = 13121011231 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13121011231) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1822066 + ... + 1829252.

It is an arithmetic number, because the mean of its divisors is an integer number (447409872).

Almost surely, 2^13121011233 is an apocalyptic number.

It is an amenable number.

13121011233 is a deficient number, since it is larger than the sum of its proper divisors (8354662623).

13121011233 is an equidigital number, since it uses as much as digits as its factorization.

13121011233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7896 (or 7884 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 13121011233 its reverse (33211012131), we get a palindrome (46332023364).

The spelling of 13121011233 in words is "thirteen billion, one hundred twenty-one million, eleven thousand, two hundred thirty-three".