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11200202231 = 55720108083
BaseRepresentation
bin10100110111001010…
…11000010111110111
31001220120011020001212
422123211120113313
5140414222432411
65051215112035
7544360101551
oct123345302767
931816136055
1011200202231
114828249789
122206b1261b
1310965529ca
147837064d1
1545843868b
hex29b9585f7

11200202231 has 4 divisors (see below), whose sum is σ = 11220310872. Its totient is φ = 11180093592.

The previous prime is 11200202227. The next prime is 11200202249. The reversal of 11200202231 is 13220200211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13220200211 = 107123553273.

It is a cyclic number.

It is not a de Polignac number, because 11200202231 - 22 = 11200202227 is a prime.

It is a super-2 number, since 2×112002022312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11200202261) 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, 10053485 + ... + 10054598.

It is an arithmetic number, because the mean of its divisors is an integer number (2805077718).

Almost surely, 211200202231 is an apocalyptic number.

11200202231 is a deficient number, since it is larger than the sum of its proper divisors (20108641).

11200202231 is an equidigital number, since it uses as much as digits as its factorization.

11200202231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20108640.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 11200202231 its reverse (13220200211), we get a palindrome (24420402442).

The spelling of 11200202231 in words is "eleven billion, two hundred million, two hundred two thousand, two hundred thirty-one".

Divisors: 1 557 20108083 11200202231