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202011110231 = 7230013137363
BaseRepresentation
bin1011110000100011001…
…1001110101101010111
3201022102111112200002112
42330020303032231113
511302204321011411
6232445211101235
720411011051100
oct2741063165527
9638374480075
10202011110231
1178744007077
123319914181b
1316084b86528
149ac522d3a7
1553c4ccdb8b
hex2f08cceb57

202011110231 has 12 divisors (see below), whose sum is σ = 235002056472. Its totient is φ = 173145350448.

The previous prime is 202011110159. The next prime is 202011110251. The reversal of 202011110231 is 132011110202.

It is not a de Polignac number, because 202011110231 - 210 = 202011109207 is a prime.

It is a super-2 number, since 2×2020111102312 (a number of 23 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 (202011110251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1401956 + ... + 1539318.

It is an arithmetic number, because the mean of its divisors is an integer number (19583504706).

Almost surely, 2202011110231 is an apocalyptic number.

202011110231 is a deficient number, since it is larger than the sum of its proper divisors (32990946241).

202011110231 is a wasteful number, since it uses less digits than its factorization.

202011110231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167390 (or 167383 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 202011110231 its reverse (132011110202), we get a palindrome (334022220433).

The spelling of 202011110231 in words is "two hundred two billion, eleven million, one hundred ten thousand, two hundred thirty-one".

Divisors: 1 7 49 30013 137363 210091 961541 1470637 6730787 4122675719 28858730033 202011110231