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11213131002 = 232192985223
BaseRepresentation
bin10100111000101101…
…01100110011111010
31001221110111002000020
422130112230303322
5140431030143002
65052400151310
7544605020013
oct123426546372
931843432006
1011213131002
11483457a317
12220b308536
13109912b678
1478531000a
1545963e2bc
hex29c5accfa

11213131002 has 16 divisors (see below), whose sum is σ = 22427547840. Its totient is φ = 3737496032.

The previous prime is 11213130989. The next prime is 11213131049. The reversal of 11213131002 is 20013131211.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88963 + ... + 174185.

It is an arithmetic number, because the mean of its divisors is an integer number (1401721740).

Almost surely, 211213131002 is an apocalyptic number.

11213131002 is an abundant number, since it is smaller than the sum of its proper divisors (11214416838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11213131002 is a wasteful number, since it uses less digits than its factorization.

11213131002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107157.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 11213131002 its reverse (20013131211), we get a palindrome (31226262213).

The spelling of 11213131002 in words is "eleven billion, two hundred thirteen million, one hundred thirty-one thousand, two".

Divisors: 1 2 3 6 21929 43858 65787 85223 131574 170446 255669 511338 1868855167 3737710334 5606565501 11213131002