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11202012013 = 12788204819
BaseRepresentation
bin10100110111011000…
…10010001101101101
31001220200120011121211
422123230102031231
5140420203341023
65051321554421
7544411350103
oct123354221555
931820504554
1011202012013
114829275475
122207645a11
131096a3769a
14783a57c73
15458694a0d
hex29bb1236d

11202012013 has 4 divisors (see below), whose sum is σ = 11290216960. Its totient is φ = 11113807068.

The previous prime is 11202011939. The next prime is 11202012089. The reversal of 11202012013 is 31021020211.

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: 31021020211 = 131236801681.

It is a cyclic number.

It is not a de Polignac number, because 11202012013 - 221 = 11199914861 is a prime.

It is a super-3 number, since 3×112020120133 (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11202011984 and 11202012002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11202012413) 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, 44102283 + ... + 44102536.

It is an arithmetic number, because the mean of its divisors is an integer number (2822554240).

Almost surely, 211202012013 is an apocalyptic number.

It is an amenable number.

11202012013 is a deficient number, since it is larger than the sum of its proper divisors (88204947).

11202012013 is an equidigital number, since it uses as much as digits as its factorization.

11202012013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88204946.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 11202012013 its reverse (31021020211), we get a palindrome (42223032224).

The spelling of 11202012013 in words is "eleven billion, two hundred two million, twelve thousand, thirteen".

Divisors: 1 127 88204819 11202012013