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11210230021 = 251163727283
BaseRepresentation
bin10100111000010111…
…01000100100000101
31001221021000200121111
422130023220210011
5140424304330041
65052214045021
7544541245234
oct123413504405
931837020544
1011210230021
114832978811
12220a349771
131098654103
14784b96b1b
15459269981
hex29c2e8905

11210230021 has 8 divisors (see below), whose sum is σ = 11262180384. Its totient is φ = 11158338000.

The previous prime is 11210229983. The next prime is 11210230027. The reversal of 11210230021 is 12003201211.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-11210230021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11210229983 and 11210230010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11210230027) 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, 397246 + ... + 424528.

It is an arithmetic number, because the mean of its divisors is an integer number (1407772548).

Almost surely, 211210230021 is an apocalyptic number.

It is an amenable number.

11210230021 is a deficient number, since it is larger than the sum of its proper divisors (51950363).

11210230021 is a wasteful number, since it uses less digits than its factorization.

11210230021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29171.

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

Adding to 11210230021 its reverse (12003201211), we get a palindrome (23213431232).

The spelling of 11210230021 in words is "eleven billion, two hundred ten million, two hundred thirty thousand, twenty-one".

Divisors: 1 251 1637 27283 410887 6848033 44662271 11210230021