13121032011 has 8 divisors (see below), whose sum is σ = 17921409744. Its totient is φ = 8534004480.

The previous prime is 13121032003. The next prime is 13121032013. The reversal of 13121032011 is 11023012131.

It is a happy number.

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

It is not a de Polignac number, because 13121032011 - 2³ = 13121032003 is a prime.

It is a super-2 number, since 2×13121032011² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13121032013) 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, 53337406 + ... + 53337651.

It is an arithmetic number, because the mean of its divisors is an integer number (2240176218).

Almost surely, 2^13121032011 is an apocalyptic number.

13121032011 is a deficient number, since it is larger than the sum of its proper divisors (4800377733).

13121032011 is a wasteful number, since it uses less digits than its factorization.

13121032011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106675101.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 13121032011 its reverse (11023012131), we get a palindrome (24144044142).

The spelling of 13121032011 in words is "thirteen billion, one hundred twenty-one million, thirty-two thousand, eleven".