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213012012003 = 37431264118661
BaseRepresentation
bin1100011001100010000…
…0010101101111100011
3202100211011200101022220
43012120200111233203
511442222033341003
6241504550402123
721250431141030
oct3063040255743
9670734611286
10213012012003
118237980042a
1235349360343
131711903846b
14a44a296387
15581a99a353
hex3198815be3

213012012003 has 32 divisors (see below), whose sum is σ = 332182405632. Its totient is φ = 118874649600.

The previous prime is 213012011981. The next prime is 213012012041. The reversal of 213012012003 is 300210210312.

It is not a de Polignac number, because 213012012003 - 210 = 213012010979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213012032003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11405493 + ... + 11424153.

It is an arithmetic number, because the mean of its divisors is an integer number (10380700176).

Almost surely, 2213012012003 is an apocalyptic number.

213012012003 is a deficient number, since it is larger than the sum of its proper divisors (119170393629).

213012012003 is a wasteful number, since it uses less digits than its factorization.

213012012003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31355.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 213012012003 its reverse (300210210312), we get a palindrome (513222222315).

The spelling of 213012012003 in words is "two hundred thirteen billion, twelve million, twelve thousand, three".

Divisors: 1 3 7 21 43 129 301 903 12641 18661 37923 55983 88487 130627 265461 391881 543563 802423 1630689 2407269 3804941 5616961 11414823 16850883 235893701 707681103 1651255907 4953767721 10143429143 30430287429 71004004001 213012012003