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13113013033 = 21491610163
BaseRepresentation
bin11000011011001100…
…01011001100101001
31020211212110002012101
430031212023030221
5203323412404113
610005105213401
7642644525461
oct141546131451
936755402171
1013113013033
115619a5485a
12265b631261
13130c920613
148c5786ba1
1551b3272dd
hex30d98b329

13113013033 has 4 divisors (see below), whose sum is σ = 13113644688. Its totient is φ = 13112381380.

The previous prime is 13113013031. The next prime is 13113013037. The reversal of 13113013033 is 33031031131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33031031131 = 74718718733.

It is a cyclic number.

It is not a de Polignac number, because 13113013033 - 21 = 13113013031 is a prime.

It is a super-2 number, since 2×131130130332 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13113013033.

It is not an unprimeable number, because it can be changed into a prime (13113013031) 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, 283591 + ... + 326572.

It is an arithmetic number, because the mean of its divisors is an integer number (3278411172).

Almost surely, 213113013033 is an apocalyptic number.

It is an amenable number.

13113013033 is a deficient number, since it is larger than the sum of its proper divisors (631655).

13113013033 is an equidigital number, since it uses as much as digits as its factorization.

13113013033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631654.

The product of its (nonzero) digits is 243, while the sum is 19.

Adding to 13113013033 its reverse (33031031131), we get a palindrome (46144044164).

The spelling of 13113013033 in words is "thirteen billion, one hundred thirteen million, thirteen thousand, thirty-three".

Divisors: 1 21491 610163 13113013033