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11111242013 = 19963798753
BaseRepresentation
bin10100101100100100…
…00001100100011101
31001200100202120120222
422112102001210131
5140223434221023
65034320251125
7542226666404
oct122622014435
931610676528
1011111242013
114792008643
1221a1170aa5
131080ca6121
1477598a63b
15450714cc8
hex29648191d

11111242013 has 8 divisors (see below), whose sum is σ = 11170104000. Its totient is φ = 11052410688.

The previous prime is 11111242001. The next prime is 11111242031. The reversal of 11111242013 is 31024211111.

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

It is a cyclic number.

It is not a de Polignac number, because 11111242013 - 216 = 11111176477 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11111241982 and 11111242000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111242073) 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, 1265045 + ... + 1273797.

It is an arithmetic number, because the mean of its divisors is an integer number (1396263000).

Almost surely, 211111242013 is an apocalyptic number.

It is an amenable number.

11111242013 is a deficient number, since it is larger than the sum of its proper divisors (58861987).

11111242013 is an equidigital number, since it uses as much as digits as its factorization.

11111242013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15331.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 11111242013 its reverse (31024211111), we get a palindrome (42135453124).

The spelling of 11111242013 in words is "eleven billion, one hundred eleven million, two hundred forty-two thousand, thirteen".

Divisors: 1 199 6379 8753 1269421 1741847 55835387 11111242013